Re: SATA RAID5 adaptor other than 3ware? Thanks alot!
Hi, first off, I'll not be ableto make extensive perfomance benches. It'll go into production as soon as I've verified stability which will be done by what the mailscanners do most: extracting, scanning... then I'll recrompress and verify the data. Multiple loops over the weekend. Maybe I can do some bonnie stuff? Any other good performance measuring tools? Only config will be RAID5 with 4 NCQ drives 7.2 krpm. Installation will be copying the system from the old RAID1 set after upgrading the kernel to 2.6.11, so problems should be limited. Please tell me what kind of short-time-possible benches you wanna see. Remaining HW is Tyan GX28 S2881, 2x Opteron 265, 4Gig RAM PC3200R (IIRC, hardware will hopefully soon be here, already ordered incl. LSI controller). System is of course debian/sarge amd64, ia32libs but no further 32bit stuff, no X. thanks again, Sönke
Re: SATA RAID5 adaptor other than 3ware? Thanks alot!
Ok, thanks to all you guys, I have found the new LSI MegaRAID 300-8x to fit my needs most closely. They are becoming available now and I have enough time to validate one in another soon-to-arrive GX28. It has the connectors on the back side, but it's short enough and it seems to be a decent performer (judging from the Areca card http://www.tweakers.net/reviews/557 which uses the same XOR hardware - I don't trust the Areca hardware though (fan) and have very good experiences with LSI for years now). Unfortunately the MegaRAID 300-4x doesn't seem to be out yet but the price difference is a minor issue. Nice feat is support of NCQ btw, got four NCQ disks on my desk already :-) Sönke Am Dienstag, 19. Juli 2005 12:15 schrieb Stefan Lüthje: The driver show all disks as SCSI-Disks, also the SATA-Disks. Yeah, I confused that with the newer libata drivers (which also add SCSI devices and reside in drivers/scsi/) which are for 'passive' adaptors only of course. :-/ The product page http://www.icp-vortex.com/english/product/pci/rz_sata/8546rz_e.htm it lists Linux under the supported platforms, but it's not clear if AMD64 is included. It is supported. They have also the tools for the AMD64. I use the same card since 6 month without problems. Otherwise ICP-Vortex has a very good hotline, call them for further questions (no expensive service number!!).
Re: SATA RAID5 adaptor other than 3ware? Thanks alot!
I use Areca controler (1210, 4 ports pciExpress, SATA2), perfect solution. you need to patch your kernel with the areca patch ( included in mm4 patch). The areca tools to monitor the controler runs fine on debian-pure64. I recommand this product, also I have very bad experience with 3ware sata controller which offer very low performances. -- SARL GDID Gauthier DELERCE Phone: +33 6 85 42 01 62 Fax: +33 4 76 00 97 06 2 pl du cdt Nal, 38700 LA TRONCHE FRANCE Randall J. Parr wrote: Soenke von Stamm wrote: Ok, thanks to all you guys, I have found the new LSI MegaRAID 300-8x to fit my needs most closely. They are becoming available now and I have enough time to validate one in another soon-to-arrive GX28. It has the connectors on the back side, but it's short enough and it seems to be a decent performer (judging from the Areca card http://www.tweakers.net/reviews/557 which uses the same XOR hardware - I don't trust the Areca hardware though (fan) and have very good experiences with LSI for years now). Unfortunately the MegaRAID 300-4x doesn't seem to be out yet but the price difference is a minor issue. Nice feat is support of NCQ btw, got four NCQ disks on my desk already :-) Please let us know if the 300-8x does, in fact, provide similar performance to the Areca. I had been looking at the Areca (because of, in part, the review you mentioned) but have been a little leary. I have had very good experience with LSI MegaRAID with SCSI and would like to try the 300-8x (if performance IS as described). Also... I checked their drivers page but do not see a Debian and/or generic Linux driver. Do you know one is available? Thanks R.Parr, RHCE Temporal Arts -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: SATA RAID5 adaptor other than 3ware? Thanks alot!
Am Mittwoch 20 Juli 2005 16:25 schrieb Gauthier DELERCE: I use Areca controler (1210, 4 ports pciExpress, SATA2), perfect solution. you need to patch your kernel with the areca patch ( included in mm4 patch). The areca tools to monitor the controler runs fine on debian-pure64. I recommand this product, also I have very bad experience with 3ware sata controller which offer very low performances. -- SARL GDID Gauthier DELERCE Phone: +33 6 85 42 01 62 Fax: +33 4 76 00 97 06 2 pl du cdt Nal, 38700 LA TRONCHE FRANCE Not realy on the last two kernel rc's it is include. -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
Re: SATA RAID5 adaptor other than 3ware? Thanks alot!
Randall J. Parr wrote: Soenke von Stamm wrote: Ok, thanks to all you guys, I have found the new LSI MegaRAID 300-8x to fit my needs most closely. They are becoming available now and I have enough time to validate one in another soon-to-arrive GX28. It has the connectors on the back side, but it's short enough and it seems to be a decent performer (judging from the Areca card http://www.tweakers.net/reviews/557 which uses the same XOR hardware - I don't trust the Areca hardware though (fan) and have very good experiences with LSI for years now). Unfortunately the MegaRAID 300-4x doesn't seem to be out yet but the price difference is a minor issue. Nice feat is support of NCQ btw, got four NCQ disks on my desk already :-) Please let us know if the 300-8x does, in fact, provide similar performance to the Areca. I had been looking at the Areca (because of, in part, the review you mentioned) but have been a little leary. I have had very good experience with LSI MegaRAID with SCSI and would like to try the 300-8x (if performance IS as described). I chose the LSI because I couldn't find anyone here in the UK that sells the Arcea or the Tekram variant (perhaps they are the same, don't know). When it comes to performance I'm more than happy. The card is installed in a Tyan 2885 MB (PCI-X slot, of course :) ). Previously I had an Adaptec 2410 (66MHz, 64 bit) and the performance difference between these two controllers is huge. Ok, the test I did is VERY inscientific but I got the performance boost I wanted. The test was to copy a big file (700MB) from one stripe to another on the same controller (which means each controller had 4 drives connected to it and configured as two RAID-0 stripes). The file system used on the Adaptec was Reiserfs and on the LSI XFS. The copy took 13s on the Adaptec and a whopping 1.3 on the LSI. Guess if I was bouncing around the walls :). This can of course be a combination of controller/file system, which is what I suspect. Is Reiserfs known to be slow? Also... I checked their drivers page but do not see a Debian and/or generic Linux driver. Do you know one is available? The LSI MegaRAID 300-8x is supported from kernel 2.6.10 and forward. It uses the megaraid_mbox driver which of course means it's a small hell to install Debian when that controller is the only one in your system you have any disks connected to. Debian installer uses kernel 2.6.8 which does not support the card (although it loads a driver called megaraid). So to summarise, the card works ok and is fast but can be problematic to install Debian on. /Johan -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of unsubscribe. Trouble? Contact [EMAIL PROTECTED]
