[CentOS] SATA hotswap

[Ryan Wagoner]

2010/5/21 Jakub Jedelský <jakub.jedelsky at gmail.com>:
> Hi all,
>
> I changed a bad disk (automaticly disabled from software raid1 and system
> for I/O error) in one of our servers and now have problem with adding new
> one to system without reboot. Does anybody have an experience with this? Or
> is it possible? :) We're using hotswap AXX6DRV3G for 6 SATA disks from Intel
> connected directly to MB (S5520HC from Intel too). There is AHCI as driver
> (enabled in bios), no HW raid.
> I found, something like that
>
> echo "0 0 0" >/sys/class/scsi_host/host<n>/scan
>
> but it found only sda disk which is already running..
> Using CentOS 5.5, x86_64.
>
> Thanks for your ideas and replies ... and excuse my english please :)
> --
> Jakub Jedelský
> e-mail/jabber: jakub.jedelsky at gmail.com
> http://dev.stderr.cz
>

I use the following command to rescan all scsi devices

for f in /sys/class/scsi_host/host*; do echo "- - -" > $f/scan; done

You can also rescan the partitions on the devices with

partprobe -s /dev/sd?

Ryan