On Thu, Feb 02, 2006 at 03:18:14PM -0600, J. Ryan Earl wrote: > > > > Anyone tried [to how-swap] SATA drives yet? > > Yes, and it does NOT work yet. libata does not support hotplugging of > harddrives yet: http://linux.yyz.us/sata/features.html Despite the claims for the opposite, hot-swap SATA does work, albeit with caveats and depending on chipsets and drivers. Hot-unplug and hot-plug works for me with 3ware (8506) and LSI Megaraid (8-port SATA) controllers. Take a drive out, put it back in, type in a magic controller dependant command to enable it, then run mdadm --add. With the SATA Rocketraid 1820 (hptmv.ko) hot-unplug works, but hot plug does not (hptmv.ko reports "drive plugged in and enabled, but Linux I/O fails with errors). With Promise PDC20319 (4-port SATA), I hot swap by "rmmod sata_promise; remove old disk; connect new disk; modprobe sata_promise". I am sure this "rmmod" trick works for hot-swapping disks on any SATA controller. -- Konstantin Olchanski Data Acquisition Systems: The Bytes Must Flow! Email: olchansk-at-triumf-dot-ca Snail mail: 4004 Wesbrook Mall, TRIUMF, Vancouver, B.C., V6T 2A3, Canada - To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
