Re: Care and feeding of RAID?

2006-09-05 Thread Paul Waldo
Steve Cousins wrote: Gordon Henderson wrote: On Tue, 5 Sep 2006, Paul Waldo wrote: Hi all, I have a RAID6 array and I wondering about care and feeding instructions :-) Here is what I currently do: - daily incremental and weekly full backups to a separate machine - run smartd

Re: Care and feeding of RAID?

2006-09-05 Thread Paul Waldo
Paul Waldo wrote: Hi all, I have a RAID6 array and I wondering about care and feeding instructions :-) Here is what I currently do: - daily incremental and weekly full backups to a separate machine - run smartd tests (short once a day, long once a week) - check the raid for bad

Strange IO stats on RAID1?

2006-08-30 Thread Paul Waldo
Hi all, I have an IMAP mail server where mail messages are stored on a RAID1 array. The access on that array (/dev/md3) has seemed slow, so I did some investigating. iostat -x /dev/hd[bd] /dev/md3 shows this: avg-cpu: %user %nice %system %iowait %steal %idle 14.34 47.03

Re: Kernel panic during resync

2006-08-15 Thread Paul Waldo
Neil Brown wrote: On Friday August 11, [EMAIL PROTECTED] wrote: Hi all, I've got a machine with a RAID6 array which hung on me yesterday. Upon reboot, mdadm refused to start the array, since it was degraded and dirty. The array had 7 drives, and one had previously gone bad. I'm running

Re: In Trouble--Please Help! (was Re: Can't add disk to failed raid array)

2006-07-24 Thread Paul Waldo
Dan Williams wrote: On 7/23/06, Paul Waldo [EMAIL PROTECTED] wrote: Here is the dmesg output. No log files are created with the FC5 rescue disk. Thanks! I ran into this as well, I believe at this point you want to set: md-mod.start_dirty_degraded=1 as part of your boot options. Understand

In Trouble--Please Help! (was Re: Can't add disk to failed raid array)

2006-07-23 Thread Paul Waldo
Please, please! I am dead in the water! To recap, I have a RAID6 array on a Fedora Core 5 system, using /dev/hd[acdeg] 2 and /dev/sd[ab]2. /dev/hdd went bad so I replaced the drive and tried to add it back to the array. Here is what happens: #mdadm --assemble /dev/md1 /dev/hd[acdeg]2

Re: In Trouble--Please Help! (was Re: Can't add disk to failed raid array)

2006-07-23 Thread Paul Waldo
On Sunday 23 July 2006 07:25, Neil Brown wrote: On Sunday July 23, [EMAIL PROTECTED] wrote: Please, please! I am dead in the water! To recap, I have a RAID6 array on a Fedora Core 5 system, using /dev/hd[acdeg] 2 and /dev/sd[ab]2. /dev/hdd went bad so I replaced the drive and tried to

Re: In Trouble--Please Help! (was Re: Can't add disk to failed raid array)

2006-07-23 Thread Paul Waldo
On Sunday 23 July 2006 07:25, Neil Brown wrote: On Sunday July 23, [EMAIL PROTECTED] wrote: Please, please! I am dead in the water! To recap, I have a RAID6 array on a Fedora Core 5 system, using /dev/hd[acdeg] 2 and /dev/sd[ab]2. /dev/hdd went bad so I replaced the drive and tried to

Re: In Trouble--Please Help! (was Re: Can't add disk to failed raid array)

2006-07-23 Thread Paul Waldo
Here is the dmesg output. No log files are created with the FC5 rescue disk. Thanks! On Sunday 23 July 2006 07:59, Neil Brown wrote: On Sunday July 23, [EMAIL PROTECTED] wrote: At this point, I'd just be happy to be able to get the degraded array back up and running. Is there any way

Re: Raid and LVM and LILO

2006-07-18 Thread Paul Waldo
Hi Du, Did you create a /boot partition? /boot cannot be on LVM (AFAIK), and can be a regular partition or raid1. HTH. Paul Du wrote: Hi, I was/am trying to install Debian Sarge r2 with 2 Sata HD's working on Raid 1 via Software and in this newly MD device, I put LVM. All works fine and

Re: Raid and LVM and LILO

2006-07-18 Thread Paul Waldo
I assume that your /boot was raid1... I had similar issues with the Debian installer, trying to install a file server using LVM on top of RAID. I never did work out the problem; I installed Fedora Core :-/ Sorry I can't be of more help :-( Paul Du wrote: Paul Waldo wrote: Hi Du, Did you

Re: Can't add disk to failed raid array

2006-07-17 Thread Paul Waldo
:35:47 paul kernel: md: md_import_device returned -22 Paul Waldo wrote: Hi all, I have a RAID6 array where a disk went bad. I removed the old disk, put in an identical one, and repartitioned the new disk. I am now trying to add the new partition to the array, but I get this error: [EMAIL

Re: Can't add disk to failed raid array

2006-07-16 Thread Paul Waldo
Thanks for the reply, Neil. Here is my version: [EMAIL PROTECTED] log]# mdadm --version mdadm - v2.3.1 - 6 February 2006 This is a somewhat production system, running Fedora Core 5. Official packages containing mdadm at version 2.5.2 aren't available (to my knowledge), and I am very hesitant

Re: Can't add disk to failed raid array

2006-07-16 Thread Paul Waldo
: md_import_device returned -22 Jul 16 10:33:33 paul kernel: md: hdd2 has invalid sb, not importing! Jul 16 10:33:33 paul kernel: md: md_import_device returned -22 On Sunday 16 July 2006 9:26 am, you wrote: On Sun, 16 Jul 2006, Paul Waldo wrote: The superblock is at the end so you probably

Can't add disk to failed raid array

2006-07-15 Thread Paul Waldo
Hi all, I have a RAID6 array where a disk went bad. I removed the old disk, put in an identical one, and repartitioned the new disk. I am now trying to add the new partition to the array, but I get this error: [EMAIL PROTECTED] ~]# mdadm --add /dev/md1 /dev/hdd2 mdadm: add new device