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"Jesús M. Navarro" 11-24-2010 11:48 AM

IBM eServer (xSeries) and HotSwap
 
Hi, Michelle:

On Wednesday 24 November 2010 13:01:17 Michelle Konzack wrote:
> Hello *,
>
> Normaly I am using Servers "Sun Fire" but now I have a bunch of eServer
> (xSeries) and like to know, How I can HotSwap the SCA80 Drives under
> Debian.
>
> Any hints?

What do you mean? Those are SAS drives that come installed in their
hot-swappable bay. You just need to extract the failed one, put the new one
into the bay and put it on again.

What's exactly your problem?

Cheers.


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Matus UHLAR - fantomas 11-24-2010 11:56 AM

IBM eServer (xSeries) and HotSwap
 
> On Wednesday 24 November 2010 13:01:17 Michelle Konzack wrote:
> > Normaly I am using Servers "Sun Fire" but now I have a bunch of eServer
> > (xSeries) and like to know, How I can HotSwap the SCA80 Drives under
> > Debian.
> >
> > Any hints?

On 24.11.10 13:48, Jesús M. Navarro wrote:
> What do you mean? Those are SAS drives that come installed in their
> hot-swappable bay. You just need to extract the failed one, put the new one
> into the bay and put it on again.
>
> What's exactly your problem?

I have eserver 342 with hot-swappable SCSI drives and I was unable to
re-detect them after inserting. This happened ~4 years ago, maybe it would
work now.

The OP problem may be the same. does kernel autodetect inserted drive and
connect it to the system so we can imediately use it?

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Michelle Konzack 11-24-2010 12:33 PM

IBM eServer (xSeries) and HotSwap
 
Hello Jesús M. Navarro,

Am 2010-11-24 13:48:58, hacktest Du folgendes herunter:
> What do you mean? Those are SAS drives that come installed in their

I have SCSI U320 SCA80 drives and not SAS. :-D

> hot-swappable bay. You just need to extract the failed one, put the new one
> into the bay and put it on again.
>
> What's exactly your problem?

It seems it is the Kernel which screw up, if I have a filesystem or HDD
error, because the Kernel print arround 30 kByte of error messages and
if I pull out the HDD and insert a new one, it is not correctly detected
(I use the eServer xSeries 335, 345 and 365)

Note: I am new to IBM Servers, except AS400. :-D

All of my Sun servers (SCSI and SAS) are working perfectly but are costly

Thanks, Greetings and nice Day/Evening
Michelle Konzack

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Michelle Konzack 11-24-2010 12:37 PM

IBM eServer (xSeries) and HotSwap
 
Hello Matus UHLAR - fantomas,

Am 2010-11-24 13:56:17, hacktest Du folgendes herunter:
> I have eserver 342 with hot-swappable SCSI drives and I was unable to
> re-detect them after inserting. This happened ~4 years ago, maybe it would
> work now.
>
> The OP problem may be the same. does kernel autodetect inserted drive and
> connect it to the system so we can imediately use it?

The problem it here: Is the Kernel required to intervent if I use the
Hardware Raid-1 (x335, x345) or Raid-5 (x365)?

Thanks, Greetings and nice Day/Evening
Michelle Konzack

--
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itsystems@tdnet France EURL itsystems@tdnet UG (limited liability)
Owner Michelle Konzack Owner Michelle Konzack

Apt. 917 (homeoffice)
50, rue de Soultz Kinzigstraße 17
67100 Strasbourg/France 77694 Kehl/Germany
Tel: +33-6-61925193 mobil Tel: +49-177-9351947 mobil
Tel: +33-9-52705884 fix

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Aaron Thoreson 11-24-2010 12:47 PM

IBM eServer (xSeries) and HotSwap
 
It has been my experience that is the RAID controller's job to manage
that. All of our xSeries hardware has had IBM ServeRAID cards that you
manage with a utility CD or Java application once you're up and running.
Many also come with an onboard QLogic card, but you must configure
that with an onboard BIOS option at bootup.


We've never had to do anything special under Debian to make
hot-swappable drives work, but we've always had these RAID cards or
onboard controllers. Never trusted software RAID... There's no battery :)


Aaron

On 11/24/2010 07:37 AM, Michelle Konzack wrote:

Hello Matus UHLAR - fantomas,

Am 2010-11-24 13:56:17, hacktest Du folgendes herunter:

I have eserver 342 with hot-swappable SCSI drives and I was unable to
re-detect them after inserting. This happened ~4 years ago, maybe it would
work now.

The OP problem may be the same. does kernel autodetect inserted drive and
connect it to the system so we can imediately use it?


The problem it here: Is the Kernel required to intervent if I use the
Hardware Raid-1 (x335, x345) or Raid-5 (x365)?

Thanks, Greetings and nice Day/Evening
Michelle Konzack



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Aaron Thoreson 11-24-2010 12:48 PM

IBM eServer (xSeries) and HotSwap
 
It has been my experience that is the RAID controller's job to manage
that. All of our xSeries hardware has had IBM ServeRAID cards that you
manage with a utility CD or Java application once you're up and running.
Many also come with an onboard QLogic card, but you must configure
that with an onboard BIOS option at bootup.


We've never had to do anything special under Debian to make
hot-swappable drives work, but we've always had these RAID cards or
onboard controllers. Never trusted software RAID... There's no battery :)


Aaron

On 11/24/2010 07:37 AM, Michelle Konzack wrote:

Hello Matus UHLAR - fantomas,

Am 2010-11-24 13:56:17, hacktest Du folgendes herunter:

I have eserver 342 with hot-swappable SCSI drives and I was unable to
re-detect them after inserting. This happened ~4 years ago, maybe it would
work now.

The OP problem may be the same. does kernel autodetect inserted drive and
connect it to the system so we can imediately use it?


The problem it here: Is the Kernel required to intervent if I use the
Hardware Raid-1 (x335, x345) or Raid-5 (x365)?

Thanks, Greetings and nice Day/Evening
Michelle Konzack



--
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Michelle Konzack 11-24-2010 01:12 PM

IBM eServer (xSeries) and HotSwap
 
Hello Aaron Thoreson,

Am 2010-11-24 07:47:07, hacktest Du folgendes herunter:
> It has been my experience that is the RAID controller's job to
> manage that. All of our xSeries hardware has had IBM ServeRAID
> cards that you manage with a utility CD or Java application once
> you're up and running. Many also come with an onboard QLogic card,
> but you must configure that with an onboard BIOS option at bootup.

I have already configured the Raid-1 but I will have a second look into
the BIOS and the QLogic suff, which is installed. I know, that I can
configure the THing from Windos using a Software, but does the JAVA
Stuff work on Debian and can it make workable over the LOCAL network?

I like to update my Admin Server to have only one Machine to login.

> We've never had to do anything special under Debian to make

Me too up to now.

> hot-swappable drives work, but we've always had these RAID cards or
> onboard controllers. Never trusted software RAID... There's no
> battery :)

My words. ;-)

My two biggest machines are running each 4 Adaptec AAC-364 (240 HDDs in
total per server) and have not leaved me since years... and was less
expensive as a "Ready-To-Use" IBM or Sun. (one of them is my private
Debian Archive Server)

> Aaron

Thanks, Greetings and nice Day/Evening
Michelle Konzack

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mimo 12-10-2010 02:51 PM

IBM eServer (xSeries) and HotSwap
 
On Wednesday 24 November 2010 14:12:19 Michelle Konzack wrote:
> My two biggest machines are running each 4 Adaptec AAC-364 (240 HDDs in
> total per server)

A silly question but what happens after /dev/sdz ??

Michael


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Scott Edwards 12-10-2010 03:49 PM

IBM eServer (xSeries) and HotSwap
 
On Fri, Dec 10, 2010 at 9:51 AM, mimo <mimo@restoel.net> wrote:
> On Wednesday 24 November 2010 14:12:19 Michelle Konzack wrote:
>> My two biggest machines are running each 4 Adaptec AAC-364 (240 HDDs *in
>> total per server)
>
> A silly question but what happens after /dev/sdz ??
>

We don't need no stinking 26 drives. Let's use 256.

http://www.mjmwired.net/kernel/Documentation/devices.txt#2149


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Michelle Konzack 12-10-2010 04:10 PM

IBM eServer (xSeries) and HotSwap
 
Hello mimo,

Am 2010-12-10 15:51:28, hacktest Du folgendes herunter:
> A silly question but what happens after /dev/sdz ??

I have only /dev/sda to /dev/sdp or in clear 16 Raid-5 Volumes (each
with two hotfix).

Oh, there is a problem with such Storage servers:

I have my <archive.debian.tamay-dogan.net> on ist and jesterday I have a
powerfail and now it is already runing for more then 42 hours fsck on
the 16 Volumes... All drives are Seagate 146 GByte U160!

It seems fsck require arround 11 hours for one 15-Drive Raid-5 Volume.

Thanks, Greetings and nice Day/Evening
Michelle Konzack

--
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Development of Intranet and Embedded Systems with Debian GNU/Linux

itsystems@tdnet France EURL itsystems@tdnet UG (limited liability)
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67100 Strasbourg/France 77694 Kehl/Germany
Tel: +33-6-61925193 mobil Tel: +49-177-9351947 mobil
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