If I have a board that supports hot swapping SATA drives, what do I need to have in terms of installed utilities for it to work with CentOS 4? (There's all kinds of information from the board's manual for things like Windows flavors, but nothing on unix, as to always...)
Ashley M. Kirchner wrote:
If I have a board that supports hot swapping SATA drives, what do I need to have in terms of installed utilities for it to work with CentOS 4? (There's all kinds of information from the board's manual for things like Windows flavors, but nothing on unix, as to always...)
Electrically, the same as for Windows ought to apply.
From the software pov, how can it be more complication than USB storage?
John Summerfield wrote:
Ashley M. Kirchner wrote:
If I have a board that supports hot swapping SATA drives, what do I need to have in terms of installed utilities for it to work with CentOS 4? (There's all kinds of information from the board's manual for things like Windows flavors, but nothing on unix, as to always...)
Electrically, the same as for Windows ought to apply.
From the software pov, how can it be more complication than USB storage?
AFAIK there is NO hotswap support in Centos 4 unless libata with hotswap support was backported to the latest Centos 4 errata kernel.
Feizhou wrote:
AFAIK there is NO hotswap support in Centos 4 unless libata with hotswap support was backported to the latest Centos 4 errata kernel.
I figured that out when I shoved the drive in and CentOS 4 just stared at me, like nothing happened...
Note: I have since then rebuild the machine with CentOS 5, and since doing so the drives were already in the chassis so I never tried doing this with v5 yet. Maybe some time in the future as we add more drives to the system...
Ashley M. Kirchner wrote:
Feizhou wrote:
AFAIK there is NO hotswap support in Centos 4 unless libata with hotswap support was backported to the latest Centos 4 errata kernel.
I figured that out when I shoved the drive in and CentOS 4 just stared at me, like nothing happened...
Note: I have since then rebuild the machine with CentOS 5, and since doing so the drives were already in the chassis so I never tried doing this with v5 yet. Maybe some time in the future as we add more drives to the system...
If you have two drives and you are using them as a mirror you can try unplugging one of them if you are still free to mess around. :P
If I have not read wrong, there should be no 'echo add/remove-single-device "${SCSI LUN}" > /proc/scsi/scsi' magic needed like you do on 2.4...
Feizhou wrote:
If you have two drives and you are using them as a mirror you can try unplugging one of them if you are still free to mess around. :P
There are 4 drives setup in a RAID-5 configuration. But that's besides the point - I don't feel like going down to the colo just to try that out. :) I'll figure it out some other time...
Ashley M. Kirchner wrote:
Feizhou wrote:
If you have two drives and you are using them as a mirror you can try unplugging one of them if you are still free to mess around. :P
There are 4 drives setup in a RAID-5 configuration. But that's besides the point - I don't feel like going down to the colo just to try that out. :) I'll figure it out some other time...
on a spare box for future emergencies :P
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Ashley M. Kirchner -
Feizhou -
John Summerfield