dm-multipath Archives - Running Systems

Hot resize Multipath Disk – Linux

Byetzion 19/08/2011

This post is for the users of the great dm-multipath system in Linux, who encounter a major availability problem when attempting a resize of mpath devices (and their partitions), and find themselves scheduling a reboot. This documented is based on a document created by IBM called “Hot Resize Multipath Storage Volume on Linux with SVC”,…

Disk Storage

HP EVA SSSU and fixed LUN WWID

Byetzion 14/07/2008

Linux works perfectly well with multiple storage links using dm-multipath. Not only that, but HP has released their own spawn of dm-multipath, which is optimized (or so claimed, but, anyhow, well configured) to work with EVA and MSA storage devices. This is great, however, what do you do when mapping volume snapshots through dm-multipath? For…