Re: Replacing a RAID-1 mirror drive

1999-11-11 Thread Uwe Schmeling
On Wed, 10 Nov 1999, Matt Kimmel wrote: Hi all, I am running a RAID-1 mirror set of two disks on our Linux server here. A couple of weeks ago, one of the mirrors went bad. While waiting for a replacement, I ran the mirror with a single drive, which worked fine. However, now that I

Re: Re: anyone knows?

1999-11-11 Thread Qingkai Ma
I meant add some other raid architecture such as EvenOdd, P+Q to linux-raid. At 99-11-11 3:13:00, you wrote: What exactly do you wish to 'create'? I would suggest doing some reading on RAID - past, present and future - and propose your own architecture if you feel you have something to

Re: adding/removing linear raid drives

1999-11-11 Thread Robert Dahlem
Jakob, On Wed, 10 Nov 1999 19:55:56 +0100, Jakob stergaard wrote: After a change you can mkraid the array again, and if you have an ext2 filesystem on it, you can probably use ext2resize to resize that to fit the new size of the array. Note however, that ext2resize only supports *growing*

Re: adding/removing linear raid drives

1999-11-11 Thread Glenn McGrath
Well, thanks for the hints, it didnt work, this is what i did. Backed up some of the array. (this became boring so i decided to run the gauntlet) A tip for beginners, when creating linear arrays make the biggest array the first one, not the last one. Tried to defragment the md array, defrag

Re: Replacing a RAID-1 mirror drive

1999-11-11 Thread cprice
On Thu, 11 Nov 1999, Uwe Schmeling wrote: On Wed, 10 Nov 1999, Matt Kimmel wrote: Hi all, I am running a RAID-1 mirror set of two disks on our Linux server here. A couple of weeks ago, one of the mirrors went bad. While waiting for a replacement, I ran the mirror with a

Re: adding/removing linear raid drives

1999-11-11 Thread Jakob Østergaard
On Thu, Nov 11, 1999 at 01:40:07PM +1000, Glenn McGrath wrote: Well, thanks for the hints, it didnt work, this is what i did. Backed up some of the array. (this became boring so i decided to run the gauntlet) A tip for beginners, when creating linear arrays make the biggest array the first

Re: Abort

1999-11-11 Thread Jakob Østergaard
On Thu, Nov 11, 1999 at 01:49:51AM +0100, Zsiga Robert wrote: I have a problem. I would like to create a "raid arrays".I have two SCSI disks.I would like to use the RAID0 mode.When i mkraid /dev/md0 , mkraid aborted. Why? The /etc/raidtab file is the sample file for RAID0.The -f

Performance .... MegaRAID

1999-11-11 Thread Matthew Clark
Guys n gals, Does anyone here use a MegaRAID Hardware RAID controller? If yes, what is your performance like? On a 500Mb file copy (from sda - sda) we get around 2.5Mb per second.. it seems very low. At worst, we have had 456k per sec. Regards, Matthew Clark. -- NetDespatch Ltd - The

Re: Performance .... MegaRAID

1999-11-11 Thread Brian Macy
Matthew Clark wrote: Does anyone here use a MegaRAID Hardware RAID controller? If yes, what is your performance like? On a 500Mb file copy (from sda - sda) we get around 2.5Mb per second.. it seems very low. At worst, we have had 456k per sec. On my MegaRAID 428 w/ 8meg RAM I get

Re: Offtopic: LVD U2W drives on UW SCSI-3 controller

1999-11-11 Thread Jonas Diener
Hi; Sorry about the somewhat offtopic question, but I have a supplier of mine trying to tell me that LVD U2W dries will work on my Symbios 53C875 UW SCSI-3 controller. Will LVD U2W drives work on a UW controller? I thought that LVD was quite different than other forms of

Re: Offtopic: LVD U2W drives on UW SCSI-3 controller

1999-11-11 Thread Stephen Waters
Jonas Diener wrote: Hi; Sorry about the somewhat offtopic question, but I have a supplier of mine trying to tell me that LVD U2W dries will work on my Symbios 53C875 UW SCSI-3 controller. Will LVD U2W drives work on a UW controller? I thought that LVD was quite

RE: MegaRAID vs Mylex

1999-11-11 Thread Brian D. Haymore
I am getting on my RAID5 array of 8 7200RPM seagate barracuda 18.2GB drives around 30MB/S writting and 49MB/S Reading -- Brian D. Haymore University of Utah Center for High Performance Computing 155 South 1452 East RM 405 Salt Lake City, Ut 84112-0190 Email: [EMAIL PROTECTED] - Phone: (801)

MegaRAID vs Mylex

1999-11-11 Thread Matthew Clark
Which gives better performance on Linux??? Regards, Matthew Clark. -- NetDespatch Ltd - The Internet Call Centre. http://www.netdespatch.com

Re: MegaRAID vs Mylex

1999-11-11 Thread Brian D. Haymore
Mylex does from my tests. Mylex does very well in fact. -- Brian D. Haymore University of Utah Center for High Performance Computing 155 South 1452 East RM 405 Salt Lake City, Ut 84112-0190 Email: [EMAIL PROTECTED] - Phone: (801) 585-1755 - Fax: (801) 585-5366 On Thu, 11 Nov 1999, Matthew

RE: MegaRAID vs Mylex

1999-11-11 Thread Matthew Clark
Hi there, what sort of performance have you had from the Mylex on Linux? I'm looking at copying/writing 500Mb files (internal).. our megaraid runs at about 2Mb per sec... -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Brian D. Haymore Sent: 11