Re: which SATA-raid controller...
On Sun, 2004-08-15 at 18:08, IOhannes m zmoelnig wrote: hello. we are planning to set up a serial-ATA based fileserver (1 Terabyte). the host will be dedicated solely to serving files (via samba and nfs (and probably appletalk), so i was thinking about a software-raid solution. are there any cards you would recommend ? i was thinking about highpoint rocketraid-1820a (i think there are only proprietary drivers available, but it has 8 SATA-channels) or promise fasttrack s150-sx4 (only 4 SATA-channels) anything else ? (3ware and adaptec cards are most likely better (? in terms of what ?) but i guess they have their prize for getting true hardware-raid which i don't really need). mfg.a.dr IOhannes hi, we're using a backup server equipped with a 3ware controller. the motherboard is a simple desktop board, so we're using a normal pci interface. we've never had a problem, and even though using standard pci, the speeds are fairly good (surely not top of the bill though). the configuration is 3-disk raid5. fyi, here's the hdparm test: /dev/sda: Timing buffer-cache reads: 128 MB in 0.21 seconds =609.52 MB/sec Timing buffered disk reads: 64 MB in 1.43 seconds = 44.76 MB/sec i've tested disk failures by just pulling out a disk and rebuilds went fine. sure, 3ware's expensive and probably not the fastest out there, but i'm very happy with it's stablity and ease of installation and configuration. regards, -rodi. -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: which SATA-raid controller...
On Mon, 16 Aug 2004 17:39, R.M. Evers [EMAIL PROTECTED] wrote: pci, the speeds are fairly good (surely not top of the bill though). the configuration is 3-disk raid5. fyi, here's the hdparm test: /dev/sda: Timing buffered disk reads: 64 MB in 1.43 seconds = 44.76 MB/sec That read speed is quite poor. I would expect to see better speeds than that from a single S-ATA disk! For several years people have been reporting better speeds than that from 3ware controllers (although almost no-one tested with as few as three disks). But hdparm is a poor benchmark tool. I suggest using Bonnie++. -- http://www.coker.com.au/selinux/ My NSA Security Enhanced Linux packages http://www.coker.com.au/bonnie++/ Bonnie++ hard drive benchmark http://www.coker.com.au/postal/Postal SMTP/POP benchmark http://www.coker.com.au/~russell/ My home page -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: which SATA-raid controller...
On Mon, 2004-08-16 at 10:19, Russell Coker wrote: That read speed is quite poor. I would expect to see better speeds than that from a single S-ATA disk! For several years people have been reporting better speeds than that from 3ware controllers (although almost no-one tested with as few as three disks). i know, it's the mobo.. but speed isn't really what i need on that particular server. it needed to be fairly affordable, but reliable and stable. and that's exactly what it is :-) -r. -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: which SATA-raid controller...
--Monday, August 16, 2004 09:39:48 +0200 R.M. Evers [EMAIL PROTECTED]: On Sun, 2004-08-15 at 18:08, IOhannes m zmoelnig wrote: we are planning to set up a serial-ATA based fileserver (1 Terabyte). the host will be dedicated solely to serving files (via [...] we're using a backup server equipped with a 3ware controller. the motherboard is a simple desktop board, so we're using a normal pci interface. we've never had a problem, and even though using standard pci, the speeds are fairly good (surely not top of the bill though). the configuration is 3-disk raid5. A while ago we startet changing from GDT SCSI-RAID to 3ware SCSI/IDE. We have models from 2 to 12 channel in use, both ATA and SATA and are quite happy with them. Never caused any troubles so far. Some of the larger servers use the 12 channel model. None of them did support a 2TB RAID-sets so we had to setup two single disk-sets. But 3ware should have fixed that by now. RAID5 Performance is acceptable but not superior. RAID0/1/10 is fine. I haven't checked the new caching models since caching without battery backup and ECC doesn't look too reliable to me. Still performance might be tempting. Cheers, Marcel -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: which SATA-raid controller...
On Sun, Aug 15, 2004 at 06:08:31PM +0200, IOhannes m zmoelnig wrote: hello. we are planning to set up a serial-ATA based fileserver (1 Terabyte). the host will be dedicated solely to serving files (via samba and nfs (and probably appletalk), so i was thinking about a software-raid solution. are there any cards you would recommend ? i was thinking about highpoint rocketraid-1820a (i think there are only proprietary drivers available, but it has 8 SATA-channels) or promise fasttrack s150-sx4 (only 4 SATA-channels) anything else ? (3ware and adaptec cards are most likely better (? in terms of what ?) but i guess they have their prize for getting true hardware-raid which i don't really need). at under $30, the addonics ADSA2 [1] is inexpensive. as long as you use the drivers/scsi/sata_sil.c at or newer than 0.54 (~Jun 16 01:18) which is when it became reliable for me. I typically get the high side of 41 to 52 Mb/sec and I've heard of a stripped software raid getting 100 Mb/sec. that one has two channels, other models have more, how many pci slots do you have? Might be worthwhile to price out FlashDisk [2] too. // George [1] http://www.addonics.com/products/host_controller/sata_controller.asp [2] http://www.winsys.com/products/flata.php -- George Georgalis, Architect and administrator, Linux services. IXOYE http://galis.org/george/ cell:646-331-2027 mailto:[EMAIL PROTECTED] Key fingerprint = 5415 2738 61CF 6AE1 E9A7 9EF0 0186 503B 9831 1631 -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: Which SATA RAID controller?
Hello Marcin, Am 2004-03-23 18:10:23, schrieb Marcin Owsiany: Hi! I need to choose between: - 3Ware Escalade 8006-2LP - Promise Fast Track S150 TX4 The Fast Track is a little cheaper, and has 4 interfaces (3Ware only 2). Is there any good reason to choose 3Ware? YES, it works always ! ...and you can get it with 4/8/12 Ports too ! Never I will use Promise Controler... But check out the IPC/Vortex Controller... I think, they are a littlebit cheaper as the 3Ware. regards, Marcin Greetings Michelle -- Registered Linux-User #280138 with the Linux Counter, http://counter.li.org/ -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: Which SATA RAID controller?
Hello Craig, Am 2004-03-24 10:31:56, schrieb Craig Sanders: anyone have any opinions about the adaptec 2400 (ATA) or 2410 (SATA)? For two weeks I have gotten an Adaptec 2400 from http://www.ebay.de/ for around 27 ¤ and attached 4 x WD 400EB (5400RPM) which are working very fine. they have driver support in 2.4.x and 2.6.x kernels - no idea how good, though. I am using the bf24, 2.4.19, 2.4.22 and 2.4.25 and they are working very fine. unlike the 3ware cards (or any other IDE/SATA raid cards i've heard of), they do have a large (128MB) write-cache - which is essential for raid-5 performance. Right ! - Even if you choose harddisks with 5400 rpm, (very silent), I like the Performance. craig Greetings Michelle -- Registered Linux-User #280138 with the Linux Counter, http://counter.li.org/ -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: Which SATA RAID controller?
Am Mi, den 24.03.2004 schrieb Craig Sanders um 00:31: anyone have any opinions about the adaptec 2400 (ATA) or 2410 (SATA)? they have driver support in 2.4.x and 2.6.x kernels - no idea how good, though. We have a 2410 in our backup-server working flawlessly with a 2.6.4 kernel. AFAIR it did work with 2.4 during the burn-in test but as soon as we wanted to install the production system it wasn't recognized anymore until we switched to 2.6. From dmesg: Red Hat/Adaptec aacraid driver (1.1.2-lk1 Mar 17 2004) AAC0: kernel 4.1.4 build 9965 AAC0: monitor 4.1.4 build 9965 AAC0: bios 4.1.0 build 5912 AAC0: serial b9c379fafaf001 scsi0 : aacraid Vendor: ADAPTEC Model: AAR-2410SA RAID5 Rev: V1.0 Type: Direct-Access ANSI SCSI revision: 02 SCSI device sda: 960344832 512-byte hdwr sectors (491697 MB) sda: Write Protect is off sda: Mode Sense: 03 00 00 00 SCSI device sda: drive cache: write through sda: sda1 sda2 sda3 Attached scsi removable disk sda at scsi0, channel 0, id 0, lun 0 unlike the 3ware cards (or any other IDE/SATA raid cards i've heard of), they do have a large (128MB) write-cache - which is essential for raid-5 performance. We have 4 160GB Maxtor drives attached to it, configured as RAID5. If anyone is interested I can do a quick bonnie++ benchmark, though I don't know if our card has 64MB or 128MB. best regards, Markus -- Markus Oswald [EMAIL PROTECTED] \ Unix and Network Administration Graz, AUSTRIA \ High Availability / Cluster Mobile: +43 676 6485415\ System Consulting Fax:+43 316 428896 \ Web Development -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: Which SATA RAID controller?
Russell Coker wrote: If you gave me a Promise card I would not use it, most reports of them are not positive. For what it's worth - and it's probably not worth alot, I have had an okay experience with the Promise 2-port SATA RAID card in mirror mode on a not heavily loaded machine. Despite a painful installation, once running it did work okay, and the SATA seems to eliminate the can't hotswap problem on the Promise card -- I was able to yank SATA or SATA-style power connectors to the drive on repeated tests and it kept working. Would I recommend this card over a 3Ware? Never - I've been extremely happy with the 3Ware cards, especially their larger RAID5 capable models. Would I use it again in a pinch -- if I needed something _that day_ and my local vendor didn't have the 3Ware in stock? I would. Just my $0.02. -Ed -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: Which SATA RAID controller?
Craig Sanders wrote: On Tue, Mar 23, 2004 at 07:08:57PM +0100, Marc Schiffbauer wrote: snip/ anyone have any opinions about the adaptec 2400 (ATA) or 2410 (SATA)? we're running an 2400 as fileserver for almost a year as RAID5 with an 2.4.18 without any problems, and we're running the 2410 as fileserver (RAID5, 2.4.22 to 2.4.25) for two months without problems. The performance is good, and we have no problems. best regards, Markus -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: Which SATA RAID controller?
On Wed, 24 Mar 2004 04:10, Marcin Owsiany [EMAIL PROTECTED] wrote: I need to choose between: - 3Ware Escalade 8006-2LP - Promise Fast Track S150 TX4 The Fast Track is a little cheaper, and has 4 interfaces (3Ware only 2). Is there any good reason to choose 3Ware? If you gave me a Promise card I would not use it, most reports of them are not positive. 3ware cards are reliable, not too expensive, perform reasonably well, and are well supported. 3ware employees are active in the linux-ide-arrays mailing list, you can subscribe through [EMAIL PROTECTED] -- http://www.coker.com.au/selinux/ My NSA Security Enhanced Linux packages http://www.coker.com.au/bonnie++/ Bonnie++ hard drive benchmark http://www.coker.com.au/postal/Postal SMTP/POP benchmark http://www.coker.com.au/~russell/ My home page
Re: Which SATA RAID controller?
Hello Marcin, Am 2004-03-23 18:10:23, schrieb Marcin Owsiany: Hi! I need to choose between: - 3Ware Escalade 8006-2LP - Promise Fast Track S150 TX4 The Fast Track is a little cheaper, and has 4 interfaces (3Ware only 2). Is there any good reason to choose 3Ware? YES, it works always ! ...and you can get it with 4/8/12 Ports too ! Never I will use Promise Controler... But check out the IPC/Vortex Controller... I think, they are a littlebit cheaper as the 3Ware. regards, Marcin Greetings Michelle -- Registered Linux-User #280138 with the Linux Counter, http://counter.li.org/
Re: Which SATA RAID controller?
Hello Craig, Am 2004-03-24 10:31:56, schrieb Craig Sanders: anyone have any opinions about the adaptec 2400 (ATA) or 2410 (SATA)? For two weeks I have gotten an Adaptec 2400 from http://www.ebay.de/ for around 27 ¤ and attached 4 x WD 400EB (5400RPM) which are working very fine. they have driver support in 2.4.x and 2.6.x kernels - no idea how good, though. I am using the bf24, 2.4.19, 2.4.22 and 2.4.25 and they are working very fine. unlike the 3ware cards (or any other IDE/SATA raid cards i've heard of), they do have a large (128MB) write-cache - which is essential for raid-5 performance. Right ! - Even if you choose harddisks with 5400 rpm, (very silent), I like the Performance. craig Greetings Michelle -- Registered Linux-User #280138 with the Linux Counter, http://counter.li.org/
Re: Which SATA RAID controller?
Russell Coker wrote: If you gave me a Promise card I would not use it, most reports of them are not positive. For what it's worth - and it's probably not worth alot, I have had an okay experience with the Promise 2-port SATA RAID card in mirror mode on a not heavily loaded machine. Despite a painful installation, once running it did work okay, and the SATA seems to eliminate the can't hotswap problem on the Promise card -- I was able to yank SATA or SATA-style power connectors to the drive on repeated tests and it kept working. Would I recommend this card over a 3Ware? Never - I've been extremely happy with the 3Ware cards, especially their larger RAID5 capable models. Would I use it again in a pinch -- if I needed something _that day_ and my local vendor didn't have the 3Ware in stock? I would. Just my $0.02. -Ed
Re: Which SATA RAID controller?
Craig Sanders wrote: On Tue, Mar 23, 2004 at 07:08:57PM +0100, Marc Schiffbauer wrote: snip/ anyone have any opinions about the adaptec 2400 (ATA) or 2410 (SATA)? we're running an 2400 as fileserver for almost a year as RAID5 with an 2.4.18 without any problems, and we're running the 2410 as fileserver (RAID5, 2.4.22 to 2.4.25) for two months without problems. The performance is good, and we have no problems. best regards, Markus
Re: Which SATA RAID controller?
On Di, Mr 23, 2004 at 06:10:23 +0100, Marcin Owsiany [EMAIL PROTECTED] wrote: Hi! I need to choose between: - 3Ware Escalade 8006-2LP - Promise Fast Track S150 TX4 The Fast Track is a little cheaper, and has 4 interfaces (3Ware only 2). Is there any good reason to choose 3Ware? If I was spoilt for choice between the two above I wouldn't choose the Promise controller. If you are in need for 4 channels you might want to check out ICP-Vortex controllers: http://www.vortex.de/english/product/pci/rz_sata/8546rz_e.htm -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: Which SATA RAID controller?
Hello! I would recommend to take both and tell us about your experience ;-) IMHO: 3ware is _hardware_ raid Promise is pseudo-hardware (i.e. parity calc is done in the pc cpu) Promise(tx4000 based?) offers a (GPL) 2.4x kernel driver, but not as kernel patch but as separate module, i.e. you have to to initrd to boot from that md-device (I prefer ide and md driver statically linked to the kernel). 2.6.x has a driver built in. I dont know whats the current status of serial ATA in the kernel (There are (generic?) patches out I heard) With this pseudo-hardware raid I would use linux software raid on it instead of promise raid drivers drivers. This gives you the possibility to mount the disks on any ide port :-) Promise and Highpoint is pseudo-hardware (i.e. parity calc is done in the pc cpu/driver) If you go for a pseudo-raid solution you should also have a look at the highpoint based solutions, i.e. RocketRAID (1520 two channel ... 1820 8 channel). My experience with Highpoint is gerenally better than with Promise, but I ordered my first RR 1520 Controller 2 Days ago. It's not here yet ;-) Rgds, j. -- Andreas John net-lab GmbH Luisenstrasse 30b 63067 Offenbach Tel: +49 69 85700331 http://www.net-lab.net Franz Georg Khler wrote: On Di, Mr 23, 2004 at 06:10:23 +0100, Marcin Owsiany [EMAIL PROTECTED] wrote: Hi! I need to choose between: - 3Ware Escalade 8006-2LP - Promise Fast Track S150 TX4 The Fast Track is a little cheaper, and has 4 interfaces (3Ware only 2). Is there any good reason to choose 3Ware? If I was spoilt for choice between the two above I wouldn't choose the Promise controller. If you are in need for 4 channels you might want to check out ICP-Vortex controllers: http://www.vortex.de/english/product/pci/rz_sata/8546rz_e.htm
Re: Which SATA RAID controller?
* Marcin Owsiany schrieb am 23.03.04 um 18:10 Uhr: Hi! I need to choose between: - 3Ware Escalade 8006-2LP - Promise Fast Track S150 TX4 The Fast Track is a little cheaper, and has 4 interfaces (3Ware only 2). Is there any good reason to choose 3Ware? IMO 3ware are the only reasonable RAID-Controllers for (S)ATA under Linux. Linux support is very good (driver is in vanilla Kernel from kernel.org). Disk just appear as SCSI-Disks. Easy and reliable. -Marc -- NES *lol* I download something from Napster NES And the same guy I downloaded it from starts downloading it from me when I'm done NES I message him and say What are you doing? I just got that from you NES getting my song back fscker -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: Which SATA RAID controller?
Hi! What would be the disadvantage of a ICH5-R based RAID (ships with many mainboards) over a Promise pseudo-hardware-RAID? Does anybody know wether you can hot-swap with a ICH5-R/Promise-System or even Linux-Software-RAID, or not? Regards, Michael Kreilmeier -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: Which SATA RAID controller?
* Michael Kreilmeier schrieb am 23.03.04 um 20:20 Uhr: Hi! What would be the disadvantage of a ICH5-R based RAID (ships with many mainboards) over a Promise pseudo-hardware-RAID? Does anybody know wether you can hot-swap with a ICH5-R/Promise-System or even Linux-Software-RAID, or not? AFAIK thats only possible with real hardware raid. You can do hot swap with 3ware controllers. Maybe it works with vortex controllers too. 3ware offers hot swap cases for ide, too. no I am not working for 3ware ;-) I had excellent experiences with ICP Vortex SCSI raid controllers that were produced before they were sucked by Intel. Maybe the new (?) ide raid controllers from them are also very good... -Marc -- begin LOVE-LETTER-FOR-YOU.txt.vbs I am a signature virus. Distribute me until the bitter end -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: Which SATA RAID controller?
On Tue, Mar 23, 2004 at 06:38:11PM +0100, Andreas John wrote: Hello! I would recommend to take both and tell us about your experience ;-) IMHO: 3ware is _hardware_ raid Promise is pseudo-hardware (i.e. parity calc is done in the pc cpu) On Di, Mr 23, 2004 at 06:10:23 +0100, Marcin Owsiany [EMAIL PROTECTED] wrote: Hi! I need to choose between: - 3Ware Escalade 8006-2LP - Promise Fast Track S150 TX4 Please note that 3Ware Escalade 8006-2LP only does RAID levels 0 and 1, in which there is no need for checksum calculations AFAIK. What advantage does 3ware have then? Marcin -- Marcin Owsiany [EMAIL PROTECTED] http://marcin.owsiany.pl/ GnuPG: 1024D/60F41216 FE67 DA2D 0ACA FC5E 3F75 D6F6 3A0D 8AA0 60F4 1216 -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: Which SATA RAID controller?
On Tue, Mar 23, 2004 at 06:20:51PM +0100, Franz Georg Khler wrote: On Di, Mr 23, 2004 at 06:10:23 +0100, Marcin Owsiany [EMAIL PROTECTED] wrote: Hi! I need to choose between: - 3Ware Escalade 8006-2LP - Promise Fast Track S150 TX4 The Fast Track is a little cheaper, and has 4 interfaces (3Ware only 2). Is there any good reason to choose 3Ware? If I was spoilt for choice between the two above I wouldn't choose the Promise controller. Any particular reasons? Marcin -- Marcin Owsiany [EMAIL PROTECTED] http://marcin.owsiany.pl/ GnuPG: 1024D/60F41216 FE67 DA2D 0ACA FC5E 3F75 D6F6 3A0D 8AA0 60F4 1216 -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: Which SATA RAID controller?
I've an ICP Vortex GDT6528RS in my desktop, lovely little beasty! Not the fastest speed demon, but reliableWorks in Linux, FreeBSD, Win2K, WinXP, DOS, you name it. And not just 'oh we made it work but the drivers suck' they're all solid! --On Tuesday, March 23, 2004 21:34 +0100 Marc Schiffbauer [EMAIL PROTECTED] wrote: * Michael Kreilmeier schrieb am 23.03.04 um 20:20 Uhr: Hi! What would be the disadvantage of a ICH5-R based RAID (ships with many mainboards) over a Promise pseudo-hardware-RAID? Does anybody know wether you can hot-swap with a ICH5-R/Promise-System or even Linux-Software-RAID, or not? AFAIK that's only possible with real hardware raid. You can do hot swap with 3ware controllers. Maybe it works with vortex controllers too. 3ware offers hot swap cases for ide, too. no I am not working for 3ware ;-) I had excellent experiences with ICP Vortex SCSI raid controllers that were produced before they were sucked by Intel. Maybe the new (?) ide raid controllers from them are also very good... -Marc -- begin LOVE-LETTER-FOR-YOU.txt.vbs I am a signature virus. Distribute me until the bitter end -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED] -- Michael Loftis Modwest Sr. Systems Administrator Powerful, Affordable Web Hosting -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: Which SATA RAID controller?
--On Tuesday, March 23, 2004 21:48 +0100 Marcin Owsiany [EMAIL PROTECTED] wrote: On Tue, Mar 23, 2004 at 06:38:11PM +0100, Andreas John wrote: Hello! I would recommend to take both and tell us about your experience ;-) SNIP Please note that 3Ware Escalade 8006-2LP only does RAID levels 0 and 1, in which there is no need for checksum calculations AFAIK. What advantage does 3ware have then? Simple, you do one write from main memory, it does the two from it's buffer, lower overhead. Plus you get hot swapThe onboard fast trak DOES NOT HANDLE DRIVE FAILURES AND WILL LOCK YOUR MACHINE HARD! 'Voice of experience!' We have both here @mw, I've used both in the past. The 3Ware is simply a better controller, and it will be faster. By how much depends very much on your situation, and in the event of a failure it'll keep going, plus with 3dmd and/or your own scritps you'll know the failure happened. -- Michael Loftis Modwest Sr. Systems Administrator Powerful, Affordable Web Hosting -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: Which SATA RAID controller?
--On Tuesday, March 23, 2004 19:20 + Michael Kreilmeier [EMAIL PROTECTED] wrote: Hi! What would be the disadvantage of a ICH5-R based RAID (ships with many mainboards) over a Promise pseudo-hardware-RAID? The ICH is a piss poor IDE chipset. Originally developed only for server class machines with SCSI as the primary drive attachment. They have a number of problems with different types of drives and just don't generally play well at all. Now the later revisions could (hopefully would) have improved but I have ICH based systems that only work with a couple types of drives and they're slow. Does anybody know wether you can hot-swap with a ICH5-R/Promise-System or even Linux-Software-RAID, or not? Regards, Michael Kreilmeier -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED] -- Michael Loftis Modwest Sr. Systems Administrator Powerful, Affordable Web Hosting -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: Which SATA RAID controller?
On Tue, Mar 23, 2004 at 07:08:57PM +0100, Marc Schiffbauer wrote: * Marcin Owsiany schrieb am 23.03.04 um 18:10 Uhr: Hi! I need to choose between: - 3Ware Escalade 8006-2LP - Promise Fast Track S150 TX4 The Fast Track is a little cheaper, and has 4 interfaces (3Ware only 2). Is there any good reason to choose 3Ware? IMO 3ware are the only reasonable RAID-Controllers for (S)ATA under Linux. anyone have any opinions about the adaptec 2400 (ATA) or 2410 (SATA)? they have driver support in 2.4.x and 2.6.x kernels - no idea how good, though. unlike the 3ware cards (or any other IDE/SATA raid cards i've heard of), they do have a large (128MB) write-cache - which is essential for raid-5 performance. craig -- craig sanders [EMAIL PROTECTED] The next time you vote, remember that Regime change begins at home -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: Which SATA RAID controller?
On Wed, 24 Mar 2004 04:10, Marcin Owsiany [EMAIL PROTECTED] wrote: I need to choose between: - 3Ware Escalade 8006-2LP - Promise Fast Track S150 TX4 The Fast Track is a little cheaper, and has 4 interfaces (3Ware only 2). Is there any good reason to choose 3Ware? If you gave me a Promise card I would not use it, most reports of them are not positive. 3ware cards are reliable, not too expensive, perform reasonably well, and are well supported. 3ware employees are active in the linux-ide-arrays mailing list, you can subscribe through [EMAIL PROTECTED] -- http://www.coker.com.au/selinux/ My NSA Security Enhanced Linux packages http://www.coker.com.au/bonnie++/ Bonnie++ hard drive benchmark http://www.coker.com.au/postal/Postal SMTP/POP benchmark http://www.coker.com.au/~russell/ My home page -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: Which SATA RAID controller?
On Di, Mr 23, 2004 at 06:10:23 +0100, Marcin Owsiany [EMAIL PROTECTED] wrote: Hi! I need to choose between: - 3Ware Escalade 8006-2LP - Promise Fast Track S150 TX4 The Fast Track is a little cheaper, and has 4 interfaces (3Ware only 2)
Re: Which SATA RAID controller?
Hello! I would recommend to take both and tell us about your experience ;-) IMHO: 3ware is _hardware_ raid Promise is pseudo-hardware (i.e. parity calc is done in the pc cpu) Promise(tx4000 based?) offers a (GPL) 2.4x kernel driver, but not as kernel patch but as separate module, i.e. you have to to initrd to boot from that md-device (I prefer ide and md driver statically linked to the kernel). 2.6.x has a driver built in. I dont know whats the current status of serial ATA in the kernel (There are (generic?) patches out I heard) With this pseudo-hardware raid I would use linux software raid on it instead of promise raid drivers drivers. This gives you the possibility to mount the disks on any ide port :-) Promise and Highpoint is pseudo-hardware (i.e. parity calc is done in the pc cpu/driver) If you go for a pseudo-raid solution you should also have a look at the highpoint based solutions, i.e. RocketRAID (1520 two channel ... 1820 8 channel). My experience with Highpoint is gerenally better than with Promise, but I ordered my first RR 1520 Controller 2 Days ago. It's not here yet ;-) Rgds, j. -- Andreas John net-lab GmbH Luisenstrasse 30b 63067 Offenbach Tel: +49 69 85700331 http://www.net-lab.net Franz Georg Khler wrote: On Di, Mr 23, 2004 at 06:10:23 +0100, Marcin Owsiany [EMAIL PROTECTED] wrote: Hi! I need to choose between: - 3Ware Escalade 8006-2LP - Promise Fast Track S150 TX4 The Fast Track is a little cheaper, and has 4 interfaces (3Ware only 2). Is there any good reason to choose 3Ware? If I was spoilt for choice between the two above I wouldn't choose the Promise controller. If you are in need for 4 channels you might want to check out ICP-Vortex controllers: http://www.vortex.de/english/product/pci/rz_sata/8546rz_e.htm
Re: Which SATA RAID controller?
* Marcin Owsiany schrieb am 23.03.04 um 18:10 Uhr: Hi! I need to choose between: - 3Ware Escalade 8006-2LP - Promise Fast Track S150 TX4 The Fast Track is a little cheaper, and has 4 interfaces (3Ware only 2). Is there any good reason to choose 3Ware? IMO 3ware are the only reasonable RAID-Controllers for (S)ATA under Linux. Linux support is very good (driver is in vanilla Kernel from kernel.org). Disk just appear as SCSI-Disks. Easy and reliable. -Marc -- NES *lol* I download something from Napster NES And the same guy I downloaded it from starts downloading it from me when I'm done NES I message him and say What are you doing? I just got that from you NES getting my song back fscker
Re: Which SATA RAID controller?
Hi! What would be the disadvantage of a ICH5-R based RAID (ships with many mainboards) over a Promise pseudo-hardware-RAID? Does anybody know wether you can hot-swap with a ICH5-R/Promise-System or even Linux-Software-RAID, or not? Regards, Michael Kreilmeier
Re: Which SATA RAID controller?
* Michael Kreilmeier schrieb am 23.03.04 um 20:20 Uhr: Hi! What would be the disadvantage of a ICH5-R based RAID (ships with many mainboards) over a Promise pseudo-hardware-RAID? Does anybody know wether you can hot-swap with a ICH5-R/Promise-System or even Linux-Software-RAID, or not? AFAIK thats only possible with real hardware raid. You can do hot swap with 3ware controllers. Maybe it works with vortex controllers too. 3ware offers hot swap cases for ide, too. no I am not working for 3ware ;-) I had excellent experiences with ICP Vortex SCSI raid controllers that were produced before they were sucked by Intel. Maybe the new (?) ide raid controllers from them are also very good... -Marc -- begin LOVE-LETTER-FOR-YOU.txt.vbs I am a signature virus. Distribute me until the bitter end
Re: Which SATA RAID controller?
On Tue, Mar 23, 2004 at 06:38:11PM +0100, Andreas John wrote: Hello! I would recommend to take both and tell us about your experience ;-) IMHO: 3ware is _hardware_ raid Promise is pseudo-hardware (i.e. parity calc is done in the pc cpu) On Di, Mr 23, 2004 at 06:10:23 +0100, Marcin Owsiany [EMAIL PROTECTED] wrote: Hi! I need to choose between: - 3Ware Escalade 8006-2LP - Promise Fast Track S150 TX4 Please note that 3Ware Escalade 8006-2LP only does RAID levels 0 and 1, in which there is no need for checksum calculations AFAIK. What advantage does 3ware have then? Marcin -- Marcin Owsiany [EMAIL PROTECTED] http://marcin.owsiany.pl/ GnuPG: 1024D/60F41216 FE67 DA2D 0ACA FC5E 3F75 D6F6 3A0D 8AA0 60F4 1216
Re: Which SATA RAID controller?
On Tue, Mar 23, 2004 at 06:20:51PM +0100, Franz Georg Khler wrote: On Di, Mr 23, 2004 at 06:10:23 +0100, Marcin Owsiany [EMAIL PROTECTED] wrote: Hi! I need to choose between: - 3Ware Escalade 8006-2LP - Promise Fast Track S150 TX4 The Fast Track is a little cheaper, and has 4 interfaces (3Ware only 2). Is there any good reason to choose 3Ware? If I was spoilt for choice between the two above I wouldn't choose the Promise controller. Any particular reasons? Marcin -- Marcin Owsiany [EMAIL PROTECTED] http://marcin.owsiany.pl/ GnuPG: 1024D/60F41216 FE67 DA2D 0ACA FC5E 3F75 D6F6 3A0D 8AA0 60F4 1216
Re: Which SATA RAID controller?
I've an ICP Vortex GDT6528RS in my desktop, lovely little beasty! Not the fastest speed demon, but reliableWorks in Linux, FreeBSD, Win2K, WinXP, DOS, you name it. And not just 'oh we made it work but the drivers suck' they're all solid! --On Tuesday, March 23, 2004 21:34 +0100 Marc Schiffbauer [EMAIL PROTECTED] wrote: * Michael Kreilmeier schrieb am 23.03.04 um 20:20 Uhr: Hi! What would be the disadvantage of a ICH5-R based RAID (ships with many mainboards) over a Promise pseudo-hardware-RAID? Does anybody know wether you can hot-swap with a ICH5-R/Promise-System or even Linux-Software-RAID, or not? AFAIK that's only possible with real hardware raid. You can do hot swap with 3ware controllers. Maybe it works with vortex controllers too. 3ware offers hot swap cases for ide, too. no I am not working for 3ware ;-) I had excellent experiences with ICP Vortex SCSI raid controllers that were produced before they were sucked by Intel. Maybe the new (?) ide raid controllers from them are also very good... -Marc -- begin LOVE-LETTER-FOR-YOU.txt.vbs I am a signature virus. Distribute me until the bitter end -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED] -- Michael Loftis Modwest Sr. Systems Administrator Powerful, Affordable Web Hosting
Re: Which SATA RAID controller?
--On Tuesday, March 23, 2004 21:48 +0100 Marcin Owsiany [EMAIL PROTECTED] wrote: On Tue, Mar 23, 2004 at 06:38:11PM +0100, Andreas John wrote: Hello! I would recommend to take both and tell us about your experience ;-) SNIP Please note that 3Ware Escalade 8006-2LP only does RAID levels 0 and 1, in which there is no need for checksum calculations AFAIK. What advantage does 3ware have then? Simple, you do one write from main memory, it does the two from it's buffer, lower overhead. Plus you get hot swapThe onboard fast trak DOES NOT HANDLE DRIVE FAILURES AND WILL LOCK YOUR MACHINE HARD! 'Voice of experience!' We have both here @mw, I've used both in the past. The 3Ware is simply a better controller, and it will be faster. By how much depends very much on your situation, and in the event of a failure it'll keep going, plus with 3dmd and/or your own scritps you'll know the failure happened. -- Michael Loftis Modwest Sr. Systems Administrator Powerful, Affordable Web Hosting
Re: Which SATA RAID controller?
On Tue, 2004-03-23 at 18:10, Marcin Owsiany wrote: Hi! I need to choose between: - 3Ware Escalade 8006-2LP - Promise Fast Track S150 TX4 The Fast Track is a little cheaper, and has 4 interfaces (3Ware only 2). Is there any good reason to choose 3Ware? don't know about the promise, but: the 3ware is a lovely cheap (!) solution if you want a big array. it feels (no real tests done) dead slow compared to, albeit smaller, MYLEX arrays I've build, though. (I had a hell of a time installing my last 3ware, turns out I had 2 bad RAM and a faulty 3ware card, with everything replaced it's working fine in debian-woody) tinus.
Re: Which SATA RAID controller?
On Tue, Mar 23, 2004 at 07:08:57PM +0100, Marc Schiffbauer wrote: * Marcin Owsiany schrieb am 23.03.04 um 18:10 Uhr: Hi! I need to choose between: - 3Ware Escalade 8006-2LP - Promise Fast Track S150 TX4 The Fast Track is a little cheaper, and has 4 interfaces (3Ware only 2). Is there any good reason to choose 3Ware? IMO 3ware are the only reasonable RAID-Controllers for (S)ATA under Linux. anyone have any opinions about the adaptec 2400 (ATA) or 2410 (SATA)? they have driver support in 2.4.x and 2.6.x kernels - no idea how good, though. unlike the 3ware cards (or any other IDE/SATA raid cards i've heard of), they do have a large (128MB) write-cache - which is essential for raid-5 performance. craig -- craig sanders [EMAIL PROTECTED] The next time you vote, remember that Regime change begins at home
