search for: rr_min_io

...prio_callout "/sbin/mpath_prio_alua /dev/%n" hardware_handler "0" path_selector "round-robin 0" path_grouping_policy group_by_prio failback immediate rr_weight uniform no_path_retry 18 rr_min_io 100 path_checker tur } - but our actual multipathing as shown by multipath -ll , and multipath -ll -v 3 looks as though for the HSV400 it is using the defaults rather than these settings. The defaults are #defaults { # udev_dir /dev # polling_interva...

...prio_callout "/sbin/mpath_prio_alua /dev/%n" hardware_handler "0" path_selector "round-robin 0" path_grouping_policy group_by_prio failback immediate rr_weight uniform no_path_retry 18 rr_min_io 100 path_checker tur } - but our actual multipathing as shown by multipath -ll , and multipath -ll -v 3 looks as though for the HSV400 it is using the defaults rather than these settings. The defaults are #defaults { # udev_dir /dev # polling_interval...

...device { vendor IBM product 1726-4xx path_checker rdac features 1 queue_if_no_path hardware_handler 1 rdac prio_callout /sbin/mpath_prio_rdac /dev/%n no_path_retry 300 rr_min_io 1000 } The V3700 is still complaining and I note the "path checker rdac" and mpath_prio_rdac lines. Is this rdac the same as IBM's RDAC, and if so how can I get rid of it? OS is CentOS 5.3 (yes, I know - upgrade), filesystem is GPFS. This email and any attachments to it may...

...t; product 1726-4xx > path_checker rdac > features 1 queue_if_no_path > hardware_handler 1 rdac > prio_callout /sbin/mpath_prio_rdac /dev/%n > no_path_retry 300 > rr_min_io 1000 > } The right settings are documented here: https://access.redhat.com/solutions/85223 Yoi should be a little more specific about the conflict you see. > The V3700 is still complaining and I note the "path checker rdac" and > mpath_prio_rdac lines. Is this rdac...

...device { vendor IBM product 1726-4xx path_checker rdac features 1 queue_if_no_path hardware_handler 1 rdac prio_callout /sbin/mpath_prio_rdac /dev/%n no_path_retry 300 rr_min_io 1000 } The V3700 is still complaining and I note the "path checker rdac" and mpath_prio_rdac lines. Is this rdac the same as IBM's RDAC, and if so how can I get rid of it? OS is CentOS 5.3 (yes, I know - upgrade), filesystem is GPFS. This email and any attachments to it may...

...device { vendor IBM product 1726-4xx path_checker rdac features 1 queue_if_no_path hardware_handler 1 rdac prio_callout /sbin/mpath_prio_rdac /dev/%n no_path_retry 300 rr_min_io 1000 } The V3700 is still complaining and I note the "path checker rdac" and mpath_prio_rdac lines. Is this rdac the same as IBM's RDAC, and if so how can I get rid of it? OS is CentOS 5.3 (yes, I know - upgrade), filesystem is GPFS. This email and any attachments to it may...

...device { vendor IBM product 1726-4xx path_checker rdac features 1 queue_if_no_path hardware_handler 1 rdac prio_callout /sbin/mpath_prio_rdac /dev/%n no_path_retry 300 rr_min_io 1000 } The V3700 is still complaining and I note the "path checker rdac" and mpath_prio_rdac lines. Is this rdac the same as IBM's RDAC, and if so how can I get rid of it? OS is CentOS 5.3 (yes, I know - upgrade), filesystem is GPFS. This email and any attachments to it may...

...device { vendor IBM product 1726-4xx path_checker rdac features 1 queue_if_no_path hardware_handler 1 rdac prio_callout /sbin/mpath_prio_rdac /dev/%n no_path_retry 300 rr_min_io 1000 } The V3700 is still complaining and I note the "path checker rdac" and mpath_prio_rdac lines. Is this rdac the same as IBM's RDAC, and if so how can I get rid of it? OS is CentOS 5.3 (yes, I know - upgrade), filesystem is GPFS. This email and any attachments to it may...

...device { vendor IBM product 1726-4xx path_checker rdac features 1 queue_if_no_path hardware_handler 1 rdac prio_callout /sbin/mpath_prio_rdac /dev/%n no_path_retry 300 rr_min_io 1000 } The V3700 is still complaining and I note the "path checker rdac" and mpath_prio_rdac lines. Is this rdac the same as IBM's RDAC, and if so how can I get rid of it? OS is CentOS 5.3 (yes, I know - upgrade), filesystem is GPFS. This email and any attachments to it may...

...uct 1726-4xx >> path_checker rdac >> features 1 queue_if_no_path >> hardware_handler 1 rdac >> prio_callout /sbin/mpath_prio_rdac /dev/%n >> no_path_retry 300 >> rr_min_io 1000 >> } > >The right settings are documented here: > >https://access.redhat.com/solutions/85223 Thanks, I shall investigate. The stanza I've used was the one that multipath itself supplies. >Yoi should be a little more specific about the conflict you see. The...

...uct 1726-4xx >> path_checker rdac >> features 1 queue_if_no_path >> hardware_handler 1 rdac >> prio_callout /sbin/mpath_prio_rdac /dev/%n >> no_path_retry 300 >> rr_min_io 1000 >> } > >The right settings are documented here: > >https://access.redhat.com/solutions/85223 Thanks, I shall investigate. The stanza I've used was the one that multipath itself supplies. >Yoi should be a little more specific about the conflict you see. The...

...uct 1726-4xx >> path_checker rdac >> features 1 queue_if_no_path >> hardware_handler 1 rdac >> prio_callout /sbin/mpath_prio_rdac /dev/%n >> no_path_retry 300 >> rr_min_io 1000 >> } > >The right settings are documented here: > >https://access.redhat.com/solutions/85223 Thanks, I shall investigate. The stanza I've used was the one that multipath itself supplies. >Yoi should be a little more specific about the conflict you see. The...

...uct 1726-4xx >> path_checker rdac >> features 1 queue_if_no_path >> hardware_handler 1 rdac >> prio_callout /sbin/mpath_prio_rdac /dev/%n >> no_path_retry 300 >> rr_min_io 1000 >> } > >The right settings are documented here: > >https://access.redhat.com/solutions/85223 Thanks, I shall investigate. The stanza I've used was the one that multipath itself supplies. >Yoi should be a little more specific about the conflict you see. The...

...uct 1726-4xx >> path_checker rdac >> features 1 queue_if_no_path >> hardware_handler 1 rdac >> prio_callout /sbin/mpath_prio_rdac /dev/%n >> no_path_retry 300 >> rr_min_io 1000 >> } > >The right settings are documented here: > >https://access.redhat.com/solutions/85223 Thanks, I shall investigate. The stanza I've used was the one that multipath itself supplies. >Yoi should be a little more specific about the conflict you see. The...

...uct 1726-4xx >> path_checker rdac >> features 1 queue_if_no_path >> hardware_handler 1 rdac >> prio_callout /sbin/mpath_prio_rdac /dev/%n >> no_path_retry 300 >> rr_min_io 1000 >> } > >The right settings are documented here: > >https://access.redhat.com/solutions/85223 Thanks, I shall investigate. The stanza I've used was the one that multipath itself supplies. >Yoi should be a little more specific about the conflict you see. The...

Hello, I hope to be in the right list. my question is the following. I can''t seem to get multipathing configure on XCP 1.6. In XenCenter I was able to enable "Multipath" however, in the LUN under general tab I see " multipath 1 of 1 active", the the CLI I do the following command xe --m node session it list only one session. Can someone help me please? Thanks in

...e-mapper multipath by commenting the "blacklist" section in /etc/multipath.conf and adding this "defaults" section: defaults { user_friendly_names yes polling_interval 5 #path_grouping_policy failover path_grouping_policy multibus rr_min_io 1 failback immediate #failback manual no_path_retry fail #no_path_retry queue } Now I have the mpath device configured correctly (IMHO): # multipath -ll mpath0 (gnbd) dm-2 GNBD,GNBD [size=20G][features=0][hwhandler=0] \_ round-robin 0 [prio=2][enabled...

...polling_interval 2 selector "round-robin 0" path_grouping_policy multibus # getuid_callout "/sbin/scsi_id -g -u -s /block/%n" prio_callout /bin/true path_checker readsector0 rr_min_io 10 rr_weight priorities failback 2 no_path_retry fail user_friendly_name no } The default parameter node.conn[0].timeo.noop_out_interval = 10 on the initiator tells it to "ping" the target once ever...

Dear list, we have a relatively new Sun Storage 7310, where we connect CentOS 5.5 Servers (IBM LS21/LS41 Blades) via Brocade Switches, 4GBit FC. The Blades boot from SAN via qla2xxx, and have no harddisks at all. We want them to use multipathing from the very beginning, so /boot and / are already seen by multipathd. Problem is, that the Sun 7310 has two storage heads which run in

Are folks in the Centos community succesfully using device-mapper-multipath? I am looking to deploy it for error handling on our iSCSI setup but there seems to be little traffic about this package on the Centos forums, as far as I can tell, and there seems to be a number of small issues based on my reading the dm-multipath developer lists and related resources. -geoff Geoff Galitz Blankenheim