HelloI have (maybe similar?) problem with MD3620f (fibre channel array) and rhev(h) 3.1.
problem is that MD36xxf is not listed in default multipath configuration. there was lots of errors in /var/log/messages ...Apr 11 12:18:27 rhev-04 kernel: sd 6:0:1:4: [sdi] CDB: Read(10): 28 00 00 00 00 00 00 00 08 00 Apr 11 12:18:28 rhev-04 multipathd: 36d4ae520006e702d0000054650579be9: sdl - directio checker reports path is down Apr 11 12:18:28 rhev-04 multipathd: 36d4ae520006e702d000003754f2aed00: sdm - directio checker reports path is down Apr 11 12:18:28 rhev-04 multipathd: 36d4ae520006e702d000003754f2aed00: sdj - directio checker reports path is down Apr 11 12:18:28 rhev-04 multipathd: 36d4ae520006e702d0000054650579be9: sdi - directio checker reports path is down Apr 11 12:18:29 rhev-04 kernel: sd 7:0:1:11: [sdn] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE Apr 11 12:18:29 rhev-04 kernel: sd 7:0:1:11: [sdn] Sense Key : Illegal Request [current] Apr 11 12:18:29 rhev-04 kernel: sd 7:0:1:11: [sdn] <<vendor>> ASC=0x94 ASCQ=0x1ASC=0x94 ASCQ=0x1 Apr 11 12:18:29 rhev-04 kernel: sd 7:0:1:11: [sdn] CDB: Read(10): 28 00 00 00 00 00 00 00 04 00
...
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=/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
thin hypervisor)
btw. similar stuff on Dell's forum - http://en.community.dell.com/support-forums/storage/f/1216/t/19474086.aspx
bye, dron Dne 12.4.2013 0:31, [email protected] napsal(a):
Hello J Now I can say, that problem is not only in ovirt so firstly I would like to try some tricks and tried to send report asap. Thanks *From:*Mark Wu [mailto:[email protected]] *Sent:* Wednesday, April 10, 2013 3:33 AM *To:* Kralicek, Martin *Cc:* [email protected] *Subject:* Re: [Users] oVirt 3.2 and MD3600i On 04/10/2013 02:31 AM, [email protected] <mailto:[email protected]> 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 subnet?) So, where is problem...I can create iSCSI storage domain, everything 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 – 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 ------------------------------------------------------------------------ This message is for the designated recipient only and may contain privileged, proprietary, or otherwise confidential information. If you have received it in error, please notify the sender immediately and delete the original. Any other use of the e-mail by you is prohibited. Where allowed by local law, electronic communications with Accenture and its affiliates, including e-mail and instant messaging (including content), may be scanned by our systems for the purposes of information security and assessment of internal compliance with Accenture policy. ______________________________________________________________________________________ www.accenture.com <http://www.accenture.com> _______________________________________________ Users mailing list [email protected] <mailto:[email protected]> http://lists.ovirt.org/mailman/listinfo/users _______________________________________________ Users mailing list [email protected] http://lists.ovirt.org/mailman/listinfo/users
<<attachment: jiri_slezka.vcf>>
smime.p7s
Description: Elektronicky podpis S/MIME
_______________________________________________ Users mailing list [email protected] http://lists.ovirt.org/mailman/listinfo/users
