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Old 05-13-2007, 01:04 AM   #1
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SAS & partitioning of disks

I'd like to take advantage of disk partitioning on a SAS system (still to be purchased) and probably in a raid 5 or 6 configuration using Debian Etch.

Is it possible? Is that a tested proposition?

If so, how is it done?

Any tip most welcome.

Thank you for your help.
Old 05-13-2007, 05:47 PM   #2
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I don't see how a SAS (Serial attached SCSI) disk would be different from any other sort of disk. If you want to use RAID you can either buy a Linux supported RAID controller or use software RAID, which is extremely stable in Linux. To set up software RAID you use mdadm which supports RAID 5 and RAID 6, along with other levels. I suggest reading the mdadm man page and the Linux RAID howto for more information.
Old 05-14-2007, 06:48 AM   #3
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Thank you for your answer.

Planning to use hardware raid (3ware) as the rebuild is easier/faster.

I should have stated that I know nothing about SAS.
I deduct from your answer that a SAS of 16 drives, for example, can be considered as a single drive or volume and partitioned accordingly (ignoring allowance for hot swap etc) and that this partitioning can be performed as well as making the SAS a raid 5 or 6. Is that correct?

Can anyone suggest a tutorial or similar material on SAS? I need to learn things like how it interfaces to a motherboard, setting up etc.

I've read somewhere a suggestion that even a SCSI SAS system plugs straight into a sata connector on the motherboard but I doubt that it is that simple.


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