6:03 a.m.
Toto je elektronicky podepsana zprava ve formatu MIME.
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Hello
I have (maybe similar?) problem with MD3620f (fibre channel array) and=20
rhev(h) 3.1.
problem is that MD36xxf is not listed in default multipath configuration.=
there was lots of errors in /var/log/messages
=2E..
Apr 11 12:18:27 rhev-04 kernel: sd 6:0:1:4: [sdi] CDB: Read(10): 28 00=20
00 00 00 00 00 00 08 00
Apr 11 12:18:28 rhev-04 multipathd: 36d4ae520006e702d0000054650579be9:=20
sdl - directio checker reports path is down
Apr 11 12:18:28 rhev-04 multipathd: 36d4ae520006e702d000003754f2aed00:=20
sdm - directio checker reports path is down
Apr 11 12:18:28 rhev-04 multipathd: 36d4ae520006e702d000003754f2aed00:=20
sdj - directio checker reports path is down
Apr 11 12:18:28 rhev-04 multipathd: 36d4ae520006e702d0000054650579be9:=20
sdi - directio checker reports path is down
Apr 11 12:18:29 rhev-04 kernel: sd 7:0:1:11: [sdn] Result:=20
hostbyte=3DDID_OK driverbyte=3DDRIVER_SENSE
Apr 11 12:18:29 rhev-04 kernel: sd 7:0:1:11: [sdn] Sense Key : Illegal=20
Request [current]
Apr 11 12:18:29 rhev-04 kernel: sd 7:0:1:11: [sdn] <<vendor>> ASC=3D0x94 =
ASCQ=3D0x1ASC=3D0x94 ASCQ=3D0x1
Apr 11 12:18:29 rhev-04 kernel: sd 7:0:1:11: [sdn] CDB: Read(10): 28 00=20
00 00 00 00 00 00 04 00
=2E..
I had to manually add this to /etc/multipath.conf
device {
vendor "DELL"
product "MD36xxf"
product_blacklist "Universal Xport"
path_grouping_policy group_by_prio
getuid_callout "/lib/udev/scsi_id --whitelisted --device=3D/dev/%n"=
path_selector "round-robin 0"
path_checker rdac
features "2 pg_init_retries 50"
hardware_handler "1 rdac"
prio rdac
failback immediate
rr_weight uniform
no_path_retry 15
rr_min_io 1000
rr_min_io_rq 1
}
after multipathd restart errors are gone and multipath works correctly
It would be nice to have this in default multipath config (at least for=20
thin hypervisor)
btw. similar stuff on Dell's forum -=20
http://en.community.dell.com/support-forums/storage/f/1216/t/19474086.asp=
x
bye, dron
Dne 12.4.2013 0:31, martin.kralicek(a)accenture.com napsal(a):
Hello J
Now I can say, that problem is not only in ovirt so firstly I would lik=
e
to try some tricks and tried to send report asap.
Thanks
*From:*Mark Wu [mailto:wudxw@linux.vnet.ibm.com]
*Sent:* Wednesday, April 10, 2013 3:33 AM
*To:* Kralicek, Martin
*Cc:* users(a)ovirt.org
*Subject:* Re: [Users] oVirt 3.2 and MD3600i
On 04/10/2013 02:31 AM, martin.kralicek(a)accenture.com
<mailto:martin.kralicek@accenture.com> wrote:
Hello,
Has somebody experience with Dell MD3600i and oVirt 3.2.1?
Host and oVirt are deployed on Fedora 18.
My infrastructure contains: 2 x powerconnect 6224 and this storage
with two controllers
Both switch are in stack mode and storage is connect with four 10Gb=
ports in same subnet (is better to use it without stack as two
subn=
et?)
So, where is problem...I can create iSCSI storage domain, everythin=
g
seems to be OK but when I want to add next host they cannot
access
this iSCSI target (in storage management tools is already added to
host group)
And during this process I can see only on host console IO error,
buffer error and kernel BUG: soft lockup =E2=80=93 CPU stuck etc...=
Could you please paste the log messages related to the errors above ?
Exists recommended way how involved iSCSI?
Thanks for any suggestions
Martin
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