[PVE-User] PVE 4 -> 5, multipath differences?

Marco Gaiarin gaio at sv.lnf.it
Fri Dec 28 15:17:39 CET 2018


I've just upgraded my cluster frm 4.4 to latest 5.

Before that, i've also do a firmware upgrade of the SAN (HP MSA 1040),
but seems not related.

In old PVE 4.4/jessie i got:

 dixie:~# multipath -ll
 mpath0 (3600c0ff00026ed11a7cb565701000000) dm-1 HP,MSA 1040 SAN
 size=1.4T features='1 queue_if_no_path' hwhandler='0' wp=rw
 `-+- policy='round-robin 0' prio=1 status=active
   |- 2:0:0:0 sda 8:0  active ready running
   |- 3:0:0:0 sdb 8:16 active ready running
   |- 4:0:0:0 sdc 8:32 active ready running
   `- 5:0:0:0 sdd 8:48 active ready running

in new PVE 5/stretch i got:

 root at ashpool:~# multipath -ll
 mpath2 (3600c0ff00026ed11475d215a01000000) dm-0 HP,MSA 1040 SAN
 size=1.8T features='2 queue_if_no_path retain_attached_hw_handler' hwhandler='1 alua' wp=rw
 |-+- policy='round-robin 0' prio=50 status=active
 | |- 12:0:0:4 sdg 8:96  active ready running
 | `- 15:0:0:4 sdr 65:16 active ready running
 `-+- policy='round-robin 0' prio=10 status=enabled
   |- 13:0:0:4 sdj 8:144 active ready running
   `- 14:0:0:4 sds 65:32 active ready running

config file is the same.


Reading around seems that my SAN is a dual controller Active/Passive one,
so probably it is correct to have two path active and two ready, but...
i seek some feedback. ;-)

Thanks.

-- 
dott. Marco Gaiarin				        GNUPG Key ID: 240A3D66
  Associazione ``La Nostra Famiglia''          http://www.lanostrafamiglia.it/
  Polo FVG   -   Via della Bontà, 7 - 33078   -   San Vito al Tagliamento (PN)
  marco.gaiarin(at)lanostrafamiglia.it   t +39-0434-842711   f +39-0434-842797

		Dona il 5 PER MILLE a LA NOSTRA FAMIGLIA!
      http://www.lanostrafamiglia.it/index.php/it/sostienici/5x1000
	(cf 00307430132, categoria ONLUS oppure RICERCA SANITARIA)


More information about the pve-user mailing list