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Old 06-26-2012, 01:57 PM
Кирилл Рудов
 
Default Issue on Debian Wheezy with hot-plug SAS hdd

I have HP Proliant DL380 G7 with four SAS hdd on HP SmartArray p410i.
All hdd are configured as RAID-0. I installed on it Debian Wheezy (linux-image 3.2.0-amd64) without any troubles.But when I tried to test hot-swap I had an issue. Disconnected disks did not disappear from system until reboot.

Before switch-off:
meta@ark:~$ lsscsi
[0:0:0:0] storage HP P410i 5.12 -
[0:0:0:1] disk HP LOGICAL VOLUME 5.12 -
[0:0:0:2] disk HP LOGICAL VOLUME 5.12 /dev/sda

[0:0:0:3] disk HP LOGICAL VOLUME 5.12 /dev/sdb
[0:0:0:4] disk HP LOGICAL VOLUME 5.12 /dev/sdc
[1:0:0:0] cd/dvd hp DVD A DS8A5LH 1HE4 /dev/sr0


...and after:meta@ark:~$ lsscsi
[0:0:0:0] storage HP P410i 5.12 -
[0:0:0:1] disk HP LOGICAL VOLUME 5.12 -
[0:0:0:2] disk HP LOGICAL VOLUME 5.12 /dev/sda

[0:0:0:3] disk HP LOGICAL VOLUME 5.12 /dev/sdb
[0:0:0:4] disk HP LOGICAL VOLUME 5.12 /dev/sdc
[1:0:0:0] cd/dvd hp DVD A DS8A5LH 1HE4 /dev/sr0
 
Old 06-26-2012, 04:54 PM
Camaleón
 
Default Issue on Debian Wheezy with hot-plug SAS hdd

On Tue, 26 Jun 2012 16:57:28 +0300, Кирилл *удов wrote:

(please, no html formatted posts, thanks)

> I have HP Proliant DL380 G7 with four SAS hdd on HP SmartArray p410i.
> All hdd are configured as RAID-0.

Wait.. unless I'm missing something, raid-0 will no prevent for data loss
when you remove one of the disks regardless their hot-swapping
capabilities :-o

> I installed on it Debian Wheezy (linux-image 3.2.0-amd64) without any
> troubles. But when I tried to test hot-swap I had an issue.
> Disconnected disks did not disappear from system until reboot.

And the system was still running fine after you removed the disk? Wow, I
wonder what dmesg was saying...

> Before switch-off:
>
> meta@ark:~$ lsscsi
> [0:0:0:0] storage HP P410i 5.12 -
> [0:0:0:1] disk HP LOGICAL VOLUME 5.12 -
> [0:0:0:2] disk HP LOGICAL VOLUME 5.12 /dev/sda
> [0:0:0:3] disk HP LOGICAL VOLUME 5.12 /dev/sdb
> [0:0:0:4] disk HP LOGICAL VOLUME 5.12 /dev/sdc
> [1:0:0:0] cd/dvd hp DVD A DS8A5LH 1HE4 /dev/sr0
>
> ...and after:
> meta@ark:~$ lsscsi
> [0:0:0:0] storage HP P410i 5.12 -
> [0:0:0:1] disk HP LOGICAL VOLUME 5.12 -
> [0:0:0:2] disk HP LOGICAL VOLUME 5.12 /dev/sda
> [0:0:0:3] disk HP LOGICAL VOLUME 5.12 /dev/sdb
> [0:0:0:4] disk HP LOGICAL VOLUME 5.12 /dev/sdc
> [1:0:0:0] cd/dvd hp DVD A DS8A5LH 1HE4 /dev/sr0

If you are using the stock "hpsa" driver I'd take a look at the docs:

http://www.mjmwired.net/kernel/Documentation/scsi/hpsa.txt

Greetings,

--
Camaleón


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Old 06-26-2012, 06:12 PM
Кирилл Рудов
 
Default Issue on Debian Wheezy with hot-plug SAS hdd

>*And the system was still running fine after you removed the disk?

Each raid-0 have only one hdd because HP SmartArray p410i don't provide jbod-mode.
I think I understand what happened.

Sorry for my English
 

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