Displaying 2 results from an estimated 2 matches for "merge_bvec".
2011 Sep 11
1
[XCP] primary/primary DRBD 8.4.0-1 LVM-based shared SR (xcp 1.1) preformance tuning
...s slow). Is this
problem still the case (we are using DRBD version 8.4.0-1)? Can one
enforce the alignment settings for ext3/ext4?
# In some special circumstances the device mapper stack manages to
# pass BIOs to DRBD that violate the constraints that are set forth
# by DRBD''s merge_bvec() function and which have more than one bvec.
# A known example is:
# phys-disk -> DRBD -> LVM -> Xen -> missaligned partition (63) ->
DomU FS
# Then you might see "bio would need to, but cannot, be split:" in
# the Dom0''s kernel log.
# The best...
2009 Mar 03
13
xm migrate headache
Hi,
I am trying to (live-)migrate a paravirtualized machine from hosta to
hostb:
-----8<----
hosta:~ # xm list pvm
Name ID Mem VCPUs State Time(s)
pvm 64 384 1 -b---- 0.5
hostb:~ # xm list pvm
Error: Domain ''pvm'' does not exist.
hosta:~ # xm migrate pvm 192.168.0.2
Error: