topic Re: DISK NOT CONFIGURED in Operating System - HP-UX

DISK NOT CONFIGURED

Marco Correnti Techno S — Mon, 04 May 2015 02:20:37 GMT

Ciao

HP-UX 11.31 on ia64 Itanium , last patch applied on 2012 .....

Problem : I have replaced a failed HD with a different one but now the new one is not seen by the OS.

I have tried many things (for example I have removed stale devices) but the new HD still remain a ghost .... may be a missing device driver for the new disk or whatelse ?

Thanks in advance for the support !!

Marco

P.S. This thread has been moved from General to HP-UX > sysadmin. - Hp Forum Moderator

Re: DISK NOT CONFIGURED

gsb_2 — Mon, 04 May 2015 23:10:47 GMT

I am by no means an expert, but I sounds you need to use this manual.

Re: DISK NOT CONFIGURED

Torsten. — Tue, 05 May 2015 08:18:47 GMT

Looks like you replaced a SAS with a SATA disk, this is probably not supported.

Without knowing your server model I can't tell for sure.

In fact you cannot mirror SAS to SATA as a hardware RAID.

Try

# saconfig /dev/ciss0

to get more information.

Since the controller is obviously configured in HBA mode, you should see all disks in ioscan.

Re: DISK NOT CONFIGURED

Marco Correnti Techno S — Tue, 05 May 2015 09:13:50 GMT

Thanks Torsten

I have had the same doubt about the disk type (SAS vs SATA), so yesterday I have "found" the command that manage the SA Controller, some command output is in the attachment.

Anyway a quick check can confirm your doubt ....the new disk is a SATA one ...

(www.wdc.com/global/products/specs/?driveID=1261&language=1)

Anyway I am not using the SAS "logical drive" infact I am using the mirroring capability of the LVM for the RAID 1.

I have read that when a "logical drive" is used all HDs must be of the same type ^¹ (all SAS or all SATA) but it is not clear to me if it is possible to mix them if I use them with the LVM RAID.

The HD is recognized by the SAS controller but not by the OS ...why ?

Reference ^¹ "Configuring Arrays on HP Smart Array Controllers Reference Guide page 5 Part Number: 433572-402"

Ciao

Marco

EDIT : machinfo output attached ;-)

PS : Thanks also to gsb_2 for the manual ;-)

Re: DISK NOT CONFIGURED

Torsten. — Tue, 05 May 2015 09:40:11 GMT

only sas drives are supported

Re: DISK NOT CONFIGURED

Marco Correnti Techno S — Tue, 05 May 2015 11:21:22 GMT

Thanks again Torsten

I wonder if the only support is SAS drives is a "constraint" of the SA Controller (HW, firmware or configuration) or of the HP-UX OS (configuration,patches ...) ?

I need to clarify the fact in order to return the HD ...the best thing would be a document reference for this.

Regards

Marco

Re: DISK NOT CONFIGURED

Torsten. — Tue, 05 May 2015 11:39:53 GMT

they never tell what is not supported, but tell what is supported. you will find only sas drives as supported, maybe sata drives are "blocked" by the firmware. these servers have different firmware for smartarrays compared to proliants

sent from mobile

Re: DISK NOT CONFIGURED

Marco Correnti Techno S — Tue, 05 May 2015 12:54:24 GMT

Thanks again Torsten

I have found where is written that for our BL870c i2 systems only SAS HDs are supported ....

--> http://www8.hp.com/h20195/v2/getpdf.aspx/c04111682.pdf?ver=20

Many thanks for the support ;-)

Regards

Marco

Re: DISK NOT CONFIGURED

Torsten. — Wed, 06 May 2015 14:19:58 GMT

Before installing the correct disk, make sure to read the LVM admin guide very carefully!

Several steps are needed (redirect device file, partition disk, etc).