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SAS raid not in use...

 

SAS raid not in use...

Hi gurus,
I have a bl860c machine confiugured. Now I found out that this system is slightly different from all my other bl860c's. This one does not have the raid option activated.

#/opt/sas/bin/sasmgr get_info -D /dev/sasd0 -q raid

Mon Aug 4 14:34:52 2008

---------- PHYSICAL DRIVES ----------
LUN dsf SAS Address Enclosure Bay Size(MB)

/dev/rdsk/c0t0d0 0x5000c500092f46e9 1 1 140014
/dev/rdsk/c0t1d0 0x5000c50007a50e09 1 2 140014


No raid info and two disks visible.

# ioscan -m dsf
Persistent DSF Legacy DSF(s)
========================================
/dev/rdisk/disk2 /dev/rdsk/c0t1d0
/dev/rdisk/disk3 /dev/rdsk/c0t0d0
/dev/rdisk/disk3_p1 /dev/rdsk/c0t0d0s1
/dev/rdisk/disk3_p2 /dev/rdsk/c0t0d0s2
/dev/rdisk/disk3_p3 /dev/rdsk/c0t0d0s3

The current production data is on the /dev/rdsk/c0t0d0 ( or /dev/rdisk/disk3, whatever you like .. ).
My question is if there is a way to enable the hardware raid option with sasmgr command when the machine is operational? Does someone have a cleaver idea how to handle this ? I know that using software raid could be an option, but then I still have differences with all my other bl860c's.
4 REPLIES
Torsten.
Acclaimed Contributor

Re: SAS raid not in use...

>>"is a way to enable the hardware raid option with sasmgr command when the machine is operational"

No. Best solution is to backup the system (ignite), create the hardware RAID and restore the data.

Hope this helps!
Regards
Torsten.

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Steven E. Protter
Exalted Contributor

Re: SAS raid not in use...

Shalom,

Hardware raid must be set up before the OS install.

If you clear stuff off your intended hardware raid disks, you can boot the system, go into hardware raid configuration and set it up after the fact.

SEP
Steven E Protter
Owner of ISN Corporation
http://isnamerica.com
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Founder http://newdatacloud.com

Re: SAS raid not in use...

grr ... I suspected that already ....
Thanks for the confirmation.

Re: SAS raid not in use...

Lot's of work to do when you don't setup your system properly ....