On 06/03/17 09:47, Zdenek Kabelac wrote:
Dne 4.3.2017 v 14:58 lejeczek napsal(a):
right?
Or it does?
From man pages my understanding is - it does not, an
expression "the
extension" is used there.
If I have a LV with 2 stripes and 64KiB stripesizes, then
adding two more
stripes, like this:
$ lvextend h300Int1/0 -i 2 -I 16 /dev/sd3 /dev/sd4 (if it
was to succeed)
will change the LV into 4 stripes LV, but what would
happened to stripesize(s)?
Hi
At this moment lvm2 supports extension only of the same
types.
So extended/added segment will have some 'geometry' as the
last/previous segment of your extended LV.
So if you do not add any 'striping' parameters - they will
be automatically detected from LV, if you add them - they
will be compared and in case of mismatch operation will be
rejected.
Also if the allocation policy and free space in VG allows
- extension will try first to extend existing segment
before allocating new space somewhere else in VG.
Regards
Zdenek
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now actually trying in practice:
an VG(just extended by /dev/sdf):
--- Physical volumes ---
PV Name /dev/sdd
PV UUID j0tyRo-k0EV-uvXv-8F3K-fQpc-LcyE-twIZs1
PV Status allocatable
Total PE / Free PE 250390 / 0
PV Name /dev/sde
PV UUID jF0NlQ-Q4zd-zWr2-s0nb-kBzc-SmYj-SrgOnW
PV Status allocatable
Total PE / Free PE 250390 / 0
PV Name /dev/sdc
PV UUID NoxH5O-6nvb-thAR-cHM6-VRTJ-gJyn-HK7y0c
PV Status allocatable
Total PE / Free PE 250390 / 0
PV Name /dev/sdf
PV UUID 27jeEj-frTR-wVQB-7Sg5-MZ6g-1eSV-RQuU8a
PV Status allocatable
Total PE / Free PE 250390 / 250390
all these fail:
$ lvextend -v -i 4 -l+100%free dellH200.InternalB/0
$ lvextend -v -i 4 -l+100%pv dellH200.InternalB/0 /dev/sdf
$ lvextend -i 4 -l 100%vg dellH200.InternalB/0
is there a problem?
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