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RAID Controller...
Hi all...
I have a problem with RIAD controller. I'm trying to install RH 8.0 in a machine with 3 30Gb hdd. Linux is not recognising the hard drives.. its saying 'no hard drives found'. But when i disable the RAID card it recognises the SCSI based drives.
Is it a limitation or am i missing something here ??
Should i try RH 9.0
Thanks.
I have a problem with RIAD controller. I'm trying to install RH 8.0 in a machine with 3 30Gb hdd. Linux is not recognising the hard drives.. its saying 'no hard drives found'. But when i disable the RAID card it recognises the SCSI based drives.
Is it a limitation or am i missing something here ??
Should i try RH 9.0
Thanks.
ASKER
Hi..
i havent tried to go into the RAID bios. I will try that now.
Btw, my RAID controller is IBM ServeRAID -4 Ultra 160 SCSI Contoller.
Thanks.
i havent tried to go into the RAID bios. I will try that now.
Btw, my RAID controller is IBM ServeRAID -4 Ultra 160 SCSI Contoller.
Thanks.
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ASKER
Hi...
Think i will go with RAID 0. I want 60GB space for MySQL database.
Also i just noticed that Linux offers a software RAID option.
Which is better, the H/W based one or the S/W based.
Just going by the cost, I'm gonna have to think its the H/W based.
Thanks.
Think i will go with RAID 0. I want 60GB space for MySQL database.
Also i just noticed that Linux offers a software RAID option.
Which is better, the H/W based one or the S/W based.
Just going by the cost, I'm gonna have to think its the H/W based.
Thanks.
The HW raid offloads the raid processing to the CPU on the card, which with it's software is optimized for that task.
Note though that in the event of a controller failure, you'll have to have a strategy to get a replacement.
Note also your MTBF on that striped set is tripled as the failure of any disk toasts all your volumes, so have a backup and disaster recovery strategy in mind.
Note though that in the event of a controller failure, you'll have to have a strategy to get a replacement.
Note also your MTBF on that striped set is tripled as the failure of any disk toasts all your volumes, so have a backup and disaster recovery strategy in mind.
You need a driver for the RAID card so RedHat can see the RAID array
RH 8's hwprobe ought to pick up any mainstream raid controller and load the appropriate modules.
If so, what is the brand and model# of your controller?