Re: Joys of spare disks!

2005-03-10 Thread Derek Piper
bytes) in grown table. > /dev/sdj - 0 entries (0 bytes) in grown table. > > -Original Message----- > From: Derek Piper [mailto:[EMAIL PROTECTED] > Sent: Tuesday, March 08, 2005 12:15 PM > To: Guy > Subject: Re: Joys of spare disks! > > Heh.. I too have Seagate driv

Joys of spare disks!

2005-03-08 Thread Derek Piper
00, Guy <[EMAIL PROTECTED]> wrote: > That has not been my experience, but I have Seagate drives! > > Guy > > -Original Message- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of Brad Campbell > Sent: Tuesday, March 01, 2005 11:57 PM > To: R

Re: Joys of spare disks!

2005-03-07 Thread LinuxRaid
Well, With this much interest, I will tear back into the bowels of Raid-5. Again, anyone else reading this with a shred of a clue as to where to start, please chime in! - John "S" At Mon, 07 Mar 2005 10:18:14 -0800, you wrote > > > >[EMAIL PROTECTED] wrote: > >> I'm running several RAID-5 array

Re: Joys of spare disks!

2005-03-07 Thread Peter T. Breuer
[EMAIL PROTECTED] wrote: > I've been going through the MD driver source, and to tell the truth, can't > figure out where the read error is detected and how to "hook" that event and > force a re-write of the failing sector. I would very much appreciate it if I did that for RAID1, or at least most

Re: Joys of spare disks!

2005-03-07 Thread LinuxRaid
t;> -----Original Message- >> From: [EMAIL PROTECTED] >> [mailto:[EMAIL PROTECTED] On Behalf Of Molle Bestefich >> Sent: Tuesday, March 01, 2005 10:51 PM >> To: linux-raid@vger.kernel.org >> Subject: Re: Joys of spare disks! >> >> Robin Bowes wr

Re: Joys of spare disks!

2005-03-03 Thread Molle Bestefich
Guy <[EMAIL PROTECTED]> wrote: I generally agree with you, so I'm just gonna cite / reply to the points where we don't :-). > This sounded like Neil's current plan. But if I understand the plan, the > drive would be kicked out of the array. Yeah, sounds bad. Although it should be marked as "deg

RE: Joys of spare disks!

2005-03-02 Thread Guy
[EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Molle Bestefich Sent: Wednesday, March 02, 2005 7:05 AM To: Guy Cc: linux-raid@vger.kernel.org Subject: Re: Joys of spare disks! Hm.. I said partial resync, because a full resync would be a waste of time if it's just a thousand sectors or

Re: Joys of spare disks!

2005-03-02 Thread Molle Bestefich
> -Original Message- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of Molle Bestefich > Sent: Tuesday, March 01, 2005 10:51 PM > To: linux-raid@vger.kernel.org > Subject: Re: Joys of spare disks! > > Robin Bowes wrote: > > I envisage something l

RE: Joys of spare disks!

2005-03-01 Thread Guy
That has not been my experience, but I have Seagate drives! Guy -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Brad Campbell Sent: Tuesday, March 01, 2005 11:57 PM To: Robin Bowes Cc: linux-raid@vger.kernel.org Subject: Re: Joys of spare disks! Robin

RE: Joys of spare disks!

2005-03-01 Thread Guy
@vger.kernel.org Subject: Re: Joys of spare disks! Robin Bowes wrote: > I envisage something like: > > md attempts read > one disk/partition fails with a bad block > md re-calculates correct data from other disks > md writes correct data to "bad" disk > - disk will re-locate t

Re: Joys of spare disks!

2005-03-01 Thread Brad Campbell
Robin Bowes wrote: Thanks to some advice from Guy the "failed" disk is now back up and running. To fix it I did the following; Just watch that disk like a hawk. I had two disks fail recently in the same way, I did exactly what you did and 2 days later they both started to grow defects again and

Re: Joys of spare disks!

2005-03-01 Thread Molle Bestefich
Molle Bestefich wrote: > [...] come to a screeching halt [...] ... because of the disks spending a couple of seconds per each write retrying the write, moving the head to the spare area, whatever. - To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to [

Re: Joys of spare disks!

2005-03-01 Thread Molle Bestefich
Robin Bowes wrote: > I envisage something like: > > md attempts read > one disk/partition fails with a bad block > md re-calculates correct data from other disks > md writes correct data to "bad" disk > - disk will re-locate the bad block Probably not that simple, since some times multiple bloc

Re: Joys of spare disks!

2005-03-01 Thread Neil Brown
On Wednesday March 2, [EMAIL PROTECTED] wrote: > > Is there any sound reason why this is not feasible? Is it just that > someone needs to write the code to implement it? Exactly (just needs to be implemented). NeilBrown - To unsubscribe from this list: send the line "unsubscribe linux-raid" in

Re: Joys of spare disks!

2005-03-01 Thread Robin Bowes
Robin Bowes wrote: Hi, I run a RAID5 array built from six 250GB Maxtor Maxline II SATA disks. After having several problems with Maxtor disks I decided to use a spare disk, i.e. 5+1 spare. Well, *another* disk failed last week. The spare disk was brought into play seamlessly: Thanks to some adv

Re: Joys of spare disks!

2005-02-28 Thread Robin Bowes
Nicola Fankhauser wrote: the RAID 5 array has 8 drives. the "server" is in my basement and thus accessible all the time. the (tested :) 9th drive is lying in my drawer and will serve as replacement as soon as a drive dies. I hope it's enough. Is that because you can't fit it in the case with the

Re: Joys of spare disks!

2005-02-28 Thread Nicola Fankhauser
hi robin Robin Bowes wrote: I bought 9 (8+1 for RAID5) 6B300S0 300GB Maxtor DM10 a month ago and they seem to run fine - though I want to test them with powermax this week to see if there could be problems. Based on my experiences, I would strongly recommend running them 7+1+1, i.e. configuring

Re: Joys of spare disks!

2005-02-28 Thread Robin Bowes
Nicola Fankhauser wrote: hi robin nice to meet you here again - I've been subscribed to this list for 1.5 hour today when your post made it into my inbox! :) Small world, eh?! Robin Bowes wrote: I've had loads of problems with MaxLine II 250GB SATA drives and wouldn't buy them again. I bought 9

Re: Joys of spare disks!

2005-02-28 Thread Nicola Fankhauser
hi robin nice to meet you here again - I've been subscribed to this list for 1.5 hour today when your post made it into my inbox! :) Robin Bowes wrote: I've had loads of problems with MaxLine II 250GB SATA drives and wouldn't buy them again. I bought 9 (8+1 for RAID5) 6B300S0 300GB Maxtor DM10

Re: Joys of spare disks!

2005-02-28 Thread Robin Bowes
Jon Lewis wrote: Are you aware Maxtor had a bad batch(es?) of large SATA drives? We have a few machines with 6 Maxtor 6Y200M0 drives and got a couple bad drives. They have a utility program (powermax) you can run that will tell you if any of your drives are bad. The bad ones will appear to work..

Re: Joys of spare disks!

2005-02-28 Thread Jon Lewis
On Mon, 28 Feb 2005, Robin Bowes wrote: > Hi, > > I run a RAID5 array built from six 250GB Maxtor Maxline II SATA disks. > After having several problems with Maxtor disks I decided to use a spare > disk, i.e. 5+1 spare. Are you aware Maxtor had a bad batch(es?) of large SATA drives? We have a fe

Joys of spare disks!

2005-02-28 Thread Robin Bowes
Hi, I run a RAID5 array built from six 250GB Maxtor Maxline II SATA disks. After having several problems with Maxtor disks I decided to use a spare disk, i.e. 5+1 spare. Well, *another* disk failed last week. The spare disk was brought into play seamlessly: [EMAIL PROTECTED] ~]# mdadm --detail