Re: [Networker] Balancing load between storage nodes
2006-05-09 09:42:48
Yes and no : It depends how you set the save mount timeout
and save lockout from device ressource :
Save Mount Timeout - Describes the timeout value of an initial
save mount request for the storage node on which this device resides.
>If the request is not satisfied within the number of minutes
>specified in this attribute, the storage node is locked from
>receiving save assignments for the number of minutes assigned to
>Save Lockout. The function provided by this attribute only applies to
the initial save volume on a remote device. You can use this
attribute for local devices as well, but you cannot change the
default value of zero in the Save Lockout attribute in this case.
This means that local devices cannot be locked out from receiving
save requests.
Save Lockout - Describes how long (in minutes) a storage node is
locked from receiving save assignments, after the storage node times
out from a save mount request. A value of zero means that the node
will not be locked if the value of Save Mount Timeout is reached.
If the device is a local device, you cannot change the value of Save
Lockout from the default value of zero.
Cheers,
Th
Kind regards - Bien cordialement - Vriendelijke groeten,
Thierry FAIDHERBE
HP Services - Storage Division
Tru64 Unix and Legato Enterprise Backup Solutions Consultant
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-----Original Message-----
From: Gatti [mailto:xy.0815 AT GMX DOT NET]
Sent: Tuesday, May 09, 2006 3:35 PM
To: NETWORKER AT LISTSERV.TEMPLE DOT EDU; Faidherbe, Thierry
Subject: Re: Balancing load between storage nodes
Hi Thierry and all,
because I missed the RTFM (M = Maillinglist),
I opened a quite similar thread below.
I'd like to discuss the following a little bit more in depth:
> Storage node affinity is based on a top-down preference,
> Legato selecting next entry from the list
> if mount request cannot be satisfied.
IMHO Legato only selects the next entry in the storage node affinity
list,
if the storage node is not reachable, etc.
>From my POV, that's not the case, if the "mount request cannot be
satisfied" (i.e. all drives on storage node are busy).
If all drives on the 1st storage node are busy, the mount request
will be queued for one drive on THIS storage node and not rerouted
to the second storage node, etc.
Unfortunately I would like to have the other
(uses next storage node if 1st is busy) behavior,
but have not tested this yet
(additional Storage node will go in production end of month)
Pls. correct me if I'm wrong.
Thx -sg-
--
Steffen Gattert; VISIOplant Hamburg
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- [Networker] Issues with clients - RPC error: Unable to send, (continued)
Re: [Networker] Balancing load between storage nodes, Brian Narkinsky
Re: [Networker] Balancing load between storage nodes, Jim Ruskowsky
Re: [Networker] Balancing load between storage nodes, Fazil Saiyed
[Networker] Balancing load between storage nodes, Fazil Saiyed
Re: [Networker] Balancing load between storage nodes, Fazil Saiyed
Re: [Networker] Balancing load between storage nodes, Gatti
- Re: [Networker] Balancing load between storage nodes,
Faidherbe, Thierry <=
Re: [Networker] Balancing load between storage nodes, Faidherbe, Thierry
Re: [Networker] Balancing load between storage nodes, Terry Lemons
Re: [Networker] Balancing load between storage nodes, Fazil Saiyed
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