On 04/29/2016 12:25 AM, Sebastian Herbszt wrote:
> Hannes Reinecke wrote:
>> Signed-off-by: Hannes Reinecke <hare@xxxxxxx>
>> ---
>> libmultipath/hwtable.c | 12 ++++++------
>> 1 file changed, 6 insertions(+), 6 deletions(-)
>
> You missed to also change multipath.conf.defaults.
>
>> diff --git a/libmultipath/hwtable.c b/libmultipath/hwtable.c
>> index 28ee595..4549268 100644
>> --- a/libmultipath/hwtable.c
>> +++ b/libmultipath/hwtable.c
>> @@ -65,13 +65,13 @@ static struct hwentry default_hw[] = {
>> .vendor = "3PARdata",
>> .product = "VV",
>> .features = DEFAULT_FEATURES,
>> - .hwhandler = DEFAULT_HWHANDLER,
>> - .pgpolicy = MULTIBUS,
>> - .pgfailback = FAILBACK_UNDEF,
>> + .hwhandler = "1 alua",
>> + .pgpolicy = GROUP_BY_PRIO,
>> + .pgfailback = -FAILBACK_IMMEDIATE,
>> .rr_weight = RR_WEIGHT_NONE,
>> - .no_path_retry = NO_PATH_RETRY_UNDEF,
>> - .checker_name = DEFAULT_CHECKER,
>> - .prio_name = DEFAULT_PRIO,
>> + .no_path_retry = 18,
>> + .checker_name = TUR,
>> + .prio_name = PRIO_ALUA,
>> .prio_args = NULL,
>> },
>> {
>
> Can you please elaborate on this?
> I think the correct setting depends on the configured
> "host persona". Currently the expected value would be
> "Generic / 1". The patch changes it to "Generic-ALUA / 2".
> Does the above change still work if the "host persona" is
> not modified and still set to "Generic / 1"?
>
I have never ever _seen_ an 3Par array, so I wasn't aware that you
could switch host 'persona'. So I have to rely on our partners (ie
HPE) for correct configuration here.
But given that fact we should better switch back to use the default
hw_handler and use the 'retain_attached_hw_handler' option.
Cheers,
Hannes
--
Dr. Hannes Reinecke Teamlead Storage & Networking
hare@xxxxxxx +49 911 74053 688
SUSE LINUX GmbH, Maxfeldstr. 5, 90409 Nürnberg
GF: F. Imendörffer, J. Smithard, J. Guild, D. Upmanyu, G. Norton
HRB 21284 (AG Nürnberg)
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