Thanks Martin. So it just seems the documentation in multipath.conf.defaults is outdated. I've closed my previous bug, and logged a new bug with a patch for the docs: Bug 1004179 - Documented NetApp device in multipath.conf.defaults is outdated https://bugzilla.redhat.com/show_bug.cgi?id=1004179 Regards, Jamie Bainbridge Red Hat Asia Pacific ----- Original Message ----- > From: "Martin George" <marting@xxxxxxxxxx> > To: "Jamie Bainbridge" <jbainbri@xxxxxxxxxx> > Cc: "device-mapper development" <dm-devel@xxxxxxxxxx> > Sent: Tuesday, 3 September, 2013 6:52:15 PM > Subject: Re: Bug 999761 - Review NetApp path_checker and features for RHEL5 mpath > > On 9/3/2013 5:22 AM, Jamie Bainbridge wrote: > > Hi all, > > > > I was wondering if I could get a response on this bug? > > > > Bug 999761 - Review NetApp path_checker and features for RHEL5 mpath > > https://bugzilla.redhat.com/show_bug.cgi?id=999761 > > > > In Bug 799842 NetApp requested that we change the default path_checker for > > NETAPP devices in RHEL 6.3 from directio to tur. > > > > * Would we consider changing the default hwtable in RHEL5, considering it's > > in Production 2? > > > > * Given NetApp reference the async tur improvements from Bug 760852 as part > > of their decision to use tur, is tur suitable for current RHEL5, or should > > we stick with directio? > > > > * If tur is suitable for current RHEL5, should we change the default RHEL5 > > hwtable to use tur? > > > > In Bug 799842 Comment 10 NetApp also requested we change the default > > features for NETAPP devices in RHEL 6.3 from "1 queue_if_no_path" to "3 > > queue_if_no_path pg_init_retries 50". > > > > * pg_init_retries has been in RHEL5 since 5.2, is pg_init_retries suitable > > for current RHEL5 also? (this seems to be an easy "yes") > > > > * If pg_init_retries is suitable for current RHEL5, should we change the > > default RHEL5 hwtable to use pg_init_retries? > > > > On newer RHEL5 kernels like RHEL 5.9, the above changes (i.e. 'tur' path > checker & enabling pg_init_retries) have already made it to the hwtable > for NetApp LUNs - addressed in device-mapper-multipath-0.4.7-51.el5. > > -Martin > -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
