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Only one disk on my bl860c

 
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JimKali
Advisor

Only one disk on my bl860c

I have two SAS disks on my Server blade but when I see in ioscan I have find only one disk... On the disk.. both the led's are blinking green

I am unable to understand y it is not visible in ioscan
9 REPLIES
Torsten.
Acclaimed Contributor
Solution

Re: Only one disk on my bl860c

Please post your

# ioscan -fn

I think you may have a hardware RAID configured ...

Hope this helps!
Regards
Torsten.

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Torsten.
Acclaimed Contributor

Re: Only one disk on my bl860c

Try this command and see if you find LOGICAL DRIVES:

# sasmgr get_info -D /dev/sasd0 -q raid

Hope this helps!
Regards
Torsten.

__________________________________________________
There are only 10 types of people in the world -
those who understand binary, and those who don't.

__________________________________________________
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If you feel this was helpful please click the KUDOS! thumb below!   
JimKali
Advisor

Re: Only one disk on my bl860c

# ioscan -fnC disk
Class I H/W Path Driver S/W State H/W Type Description
==============================================================================
disk 0 0/2/1/0.0.0.0.0 sdisk CLAIMED DEVICE HP IR V
olume
/dev/dsk/c0t0d0 /dev/rdsk/c0t0d0
/dev/dsk/c0t0d0s1 /dev/rdsk/c0t0d0s1
/dev/dsk/c0t0d0s2 /dev/rdsk/c0t0d0s2
/dev/dsk/c0t0d0s3 /dev/rdsk/c0t0d0s3

# sasmgr get_info -D /dev/sasd0 -q raid

Wed Oct 1 09:47:24 2008

---------- LOGICAL DRIVE 1 ----------

Raid Level : RAID 1
Volume sas address : 0x53a47eee4c5f950
Device Special File : /dev/rdsk/c0t0d0
Raid State : OPTIMAL
Raid Status Flag : ENABLED
Raid Size : 139236
Rebuild Rate : 0.00 %
Rebuild Progress : 100.00 %

Participating Physical Drive(s) :

SAS Address Enc Bay Size(MB) Type State

0x500000e01cbf07f2 1 2 140014 SECONDARY ONLINE
0x500000e01cc14652 1 1 140014 PRIMARY ONLINE

What is H/w Raid...
I do not know who has configured it.. Can the other disk be used as well in future
Torsten.
Acclaimed Contributor

Re: Only one disk on my bl860c

As you can see, the both disks are mirrored by hardware - if 1 fails, the data is still on the second. This is for redundancy.

Both disks are currently in use, none is empty.

Hope this helps!
Regards
Torsten.

__________________________________________________
There are only 10 types of people in the world -
those who understand binary, and those who don't.

__________________________________________________
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If you feel this was helpful please click the KUDOS! thumb below!   
JimKali
Advisor

Re: Only one disk on my bl860c

Can this h/w RAID or internal mirrioring be removed when we get an external storage..
Torsten.
Acclaimed Contributor

Re: Only one disk on my bl860c

You can "destroy" the RAID using the controller setup utility, but you probably need to backup/restore the data, see also

http://docs.hp.com/en/J6369-90071/index.html

If you have external storage, why not keep this config?

Believe me, replacing a SAS disk and restore the configuration could be a pain, but with your current setup it is just plug and play.

Hope this helps!
Regards
Torsten.

__________________________________________________
There are only 10 types of people in the world -
those who understand binary, and those who don't.

__________________________________________________
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JimKali
Advisor

Re: Only one disk on my bl860c

Opps... I had another query...

But can anyone ever create a VG01 on it...

Or is it safe to use the existing configuration...
JimKali
Advisor

Re: Only one disk on my bl860c

??


Opps... I had another query...

But can anyone ever create a VG01 on it...

Or is it safe to use the existing configuration...
Torsten.
Acclaimed Contributor

Re: Only one disk on my bl860c

it is safe to use the existing configuration...

The disk is already in use unless you delete the whole array.

Hope this helps!
Regards
Torsten.

__________________________________________________
There are only 10 types of people in the world -
those who understand binary, and those who don't.

__________________________________________________
No support by private messages. Please ask the forum!

If you feel this was helpful please click the KUDOS! thumb below!