[CentOS] Hot swap SATA?

Les Mikesell lesmikesell at gmail.com
Wed Aug 22 05:18:42 UTC 2007


Lamar Owen wrote:

>>>>> Should it be possible to hot-swap SATA drives with Centos5? 
> 
>>>> Depends on the SATA controller, but yes. If the controller allows, you
>>>> can hotswap sata drives.
> 
>>> How are the names supposed to work when one may be missing at bootup and
>>> added later?
> 
>> I thought the system would just assign the next available /dev/sdx?
> 
>> Then there was the post about wanting to be able to pull a SATA/eSATA
>> disk in and have the system automatically mount whatever filesystem is
>> on the disk...
> 
> That was mine.  Still working on it.
> 
> As to the hardware support, the definitive answer is found at 
> www.linux-ata.org  

Thanks - the problem must be the Promise controller.  I'll have to dig 
up something else.


> As to device naming, use LABEL= to fix that.  SCSI device naming on Linux 
> stinks.  

Can grub deal with that for the /boot partition?  A default install on a 
scsi drive that came in after the sata's wouldn't boot if I removed one 
of the sata disks.


What I want to end up with is the system on a pair of raid 1 scsi 
drives, then a 3-member raid1 mounted separately where one is 
periodically swapped out and taken offsite.  I'm currently doing 
something similar with 2 IDE and one firewire drive but the firewire 
driver doesn't seem reliable enough to leave the drive connected much 
longer than it takes to sync.


-- 
   Les Mikesell
    lesmikesell at gmail.com



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