the attached patches implement multipath IO for Linux in form of a sw-RAID
personality. Multipath-IO is the ability of certain devices to address the
same physical disk over multiple 'IO paths'. The code ensures that such
paths can be defined and handled runtime, and ensures that a transparent
failover to the backup path(s) happens if a IO errors arrives on the
primary path.
the attached patches add the multipath RAID personality in two stages:
- multipath-generic-2.4.10-A0, generic bits and enhancements to the MD
framework. The patch also fixes some raid-hotadd/hotremove and
autodetection bugs.
- multipath-2.4.10-A0, the multipath personality itself.
multipath-generic-2.4.10-A0 is standalone and results in a functional MD
layer. The multipath-2.4.10-A0 patch must be applied on top of this.
latest raidtools are needed to be able to define multipath devices in
/etc/raidtab. RH 7.1 and other distributions use this new raidtools
package, but the latest version can also be downloaded from:
http://redhat.com/~mingo/raidtools/raidtools-20010914.tar.gz
comments, reports welcome,
Ingo
This archive was generated by hypermail 2b29 : Sat Sep 15 2001 - 21:00:51 EST