[linux-lvm] why is pvmove so slow ?
markus at markus.org
Fri Feb 13 19:56:50 UTC 2009
I'm reorganizing my disks and use pvmove to move data. The operation is
much slower than waht I expected. My pvmove between two SATA disks is
moving along at around 10MB/s. The disks are capable of 80MB/s when
reading/writing with 'dd'.
I'm used to lvm stuff on AIX and there the pvmove equivalent is as fast as
the underlying hardware and I expected the same on my linux box.
How can I improve the performance ?
Markus Baertschi Phone: ++41 (21) 807 1677
Bas du Rossé 16 Fax : ++41 (21) 807 1678
CH-1163, Etoy Email: markus at markus.org
Switzerland Homepage: www.markus.org
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