RE: Promise Ultra66

1999-07-27 Thread Tom Rini
On Tue, 27 Jul 1999, Roeland M.J. Meyer wrote: > Yes and no. You get bigger space, but suffer in throughput and utility. > Thre 4.5GB SCSI-U2, on a AHA-2940, make a much faster and more reliable > disk-set than the same thing in UDMA. The normal performance vs space > trade-off seems to apply her

RE: Suggestions for running RAID5 (3 disks): buy 2 extra controllers??

1999-07-27 Thread Roeland M.J. Meyer
I'd like to explain why the HW numbers aren't strictly the issue, in IT departments. There are two things that increase annual cost, non-standard equipment, and high-admin equipment. IDE, at half the cost, might increase labor costs by much more than the difference in purchase price. A thousand do

OP's on Mylex AcceleRAID series

1999-07-27 Thread cbrink
I have now read 3 articles on Mylex's AcceleRAID controllers, but nothing really in-depth. Has anyone run an AcceleRAID and what were your thoughts on the card?? TIA Christian Brink [EMAIL PROTECTED]

RE: Promise Ultra66

1999-07-27 Thread Roeland M.J. Meyer
Yes and no. You get bigger space, but suffer in throughput and utility. Thre 4.5GB SCSI-U2, on a AHA-2940, make a much faster and more reliable disk-set than the same thing in UDMA. The normal performance vs space trade-off seems to apply here. > -Original Message- > From: Tom Rini [mailt

RE: Suggestions for running RAID5 (3 disks): buy 2 extra controllers??

1999-07-27 Thread Tom Livingston
Marc Mutz wrote: > You should have bought SCSI disks. They may would have been cheaper, > too, because you need only one controller for three disks. (Sorry -could > not resist :-) I know it's fun for all the server purists to knock eide, but it does have some advantages: A mythical ~90GB array:

RE: Promise Ultra66

1999-07-27 Thread Tom Rini
On Tue, 27 Jul 1999, Roeland M.J. Meyer wrote: > I just saw 4.5GB SCSI-UW drives, at Fry's, for $168US. How much disk > space do you need? Not to go too far off topic but, see what $168 gets you in IDE. Since I've done a little bit oflooking into this, I'll post some notes Ive found: (note, all

Re: Suggestions for running RAID5 (3 disks): buy 2 extra controllers??

1999-07-27 Thread Marc Mutz
Kiyan Azarbar wrote: > > I would like to run RAID5 (3 disks in the array, maybe some room in the future > for one spare disk). Right now I've got my linux root partition (well, pretty > much everything is under /, it's meant to be a server) on /dev/hda (4 gig > Quantum CR). I have 3 12 gig Quantu

RAID

1999-07-27 Thread Oliver Schmitz
Hi linux raid gurus, we're using RAID on our system for 1 1/2 year and everything works very well (slackware 3.4, linux 2.1.128, raidtools 0.42). (Except for some trouble with e2fsck on our RAID-5 Array. The server hangs, and we have to load a very old kernel and use the mdtools in the ramdisk

Re: ultra 66

1999-07-27 Thread Zach Coombes
> > Zach: > > This is a question about your hardware setup...I can not answer about your > software question. > > I am also wanting to set a system using ultra66 for 2 raid1 drives. > > If you are following the Linux-raid mail list, you have probably seen that > some people are not to hot on u

RE: Newbie with Adaptec AAA-131U2

1999-07-27 Thread Ken Cornetet
I can verify that at least the DPT SmartRaid IV board is a dog. I have one with 3 wide channels connecting 4 18GB Seagate Cheetah (10k RPM) drives in RAID 5. It also has 32MB cache. This is in a dual PII 400 system with 256MB RAM. Under Linux (Radhat 6.0) IOzone and Bonnie shows about 2.5MB/sec w

RE: Promise Ultra66

1999-07-27 Thread Roeland M.J. Meyer
I just saw 4.5GB SCSI-UW drives, at Fry's, for $168US. How much disk space do you need? > -Original Message- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED]]On Behalf Of Thomas Willert > Sent: Monday, July 26, 1999 11:30 PM > To: [EMAIL PROTECTED] > Cc: Raid Mailing List > Subject:

Suggestions for running RAID5 (3 disks): buy 2 extra controllers??

1999-07-27 Thread Kiyan Azarbar
I would like to run RAID5 (3 disks in the array, maybe some room in the future for one spare disk). Right now I've got my linux root partition (well, pretty much everything is under /, it's meant to be a server) on /dev/hda (4 gig Quantum CR). I have 3 12 gig Quantum EX's: /dev/hdb, hdc, and hdd.

Re: extending RAID5 arrays

1999-07-27 Thread Peter Green
> Hardware raid, the IBM serveraid ips, has tools under linux to add > drives on the fly, Hrm, I wasn't able to find anything on this. URL? > I belive that when I played with the dpt you could add drives, via dos. This is an Alpha-based system. Having to boot into DOS is, ba

Re: extending RAID5 arrays

1999-07-27 Thread Drew Puch
> > I saw the post around May that stated that adding drives to an existing > RAID5 array is still not possible. Is there anyone working on this? Has > there been any progress made whatsoever? We'd really like to be able to do > this (for obvious reasons). > > What good alternatives are there to

extending RAID5 arrays

1999-07-27 Thread Peter Green
I saw the post around May that stated that adding drives to an existing RAID5 array is still not possible. Is there anyone working on this? Has there been any progress made whatsoever? We'd really like to be able to do this (for obvious reasons). What good alternatives are there to RAID5, if this

Re: Recovering from 'Fake Crash'

1999-07-27 Thread Egon Eckert
> that does for you. Perhaps those are the correct steps for a brand new > unformatted drive. I did not have to do anything with the partitions. Nono.. With new (unformatted) drive you have to create the partition(s) first, that's for sure. I explained the reason for the strange, complicated m

Re: Hardware Raid Questions/Suggestions?

1999-07-27 Thread Andy Poling
On Mon, 26 Jul 1999, James Deptuck wrote: > Does anyone have any experiences with particular hardware raid controlers > that they'd be willing to share? > What's the most reliable controler? I have experience with the DPT 3334 in several production servers. It may not be the fastest hardware RAI

Re: Problems building raidtools 0.90

1999-07-27 Thread Luca Berra
On Mon, Jul 26, 1999 at 07:54:49PM +0200, Thomas Willert wrote: > /usr/include/linux/errno.h:4: asm/errno.h: No such file or directory # cd /usr/src/linux # make symlinks L. -- Luca Berra -- [EMAIL PROTECTED] Communications Media & Services S.r.l.

Re: Promise Ultra66

1999-07-27 Thread Tim Moore
> > support is still a little buggy under linux. Meaning support for the U/66 is raw. Ultra/33 is solid and as fast as intel's PIIX4E chipset. > > i recommend HIGHLY against using 4 ide drives. they cannot recover from > > problems like io timeouts, etc, and are not hotswapable. All true, but