Hi experts, I need a little help from your site to understand what''s going on. I''ve got a SUN X4540 Thumper and setup some zpools. Further I engaged the powerd configuration to stop the disks when there are idle for a specified time. Now I noticed that all disks come up once in an hour due to the fmd scanning the disks or the zpools. And here''s my problem. Which module of fmd is responsible for that? Is there a possibility to configure or stop the regarding part of the fmd? I read through the fmd documentation but can''t find a appropriate info. regards, Tobias
Tarik Soydan - Sun BOS Software
2008-Nov-14 17:28 UTC
[zfs-discuss] [fm-discuss] fmd wakeup disks in zpool
On 11/14/08 04:29, Tobias Exner wrote:> Hi experts, > > I need a little help from your site to understand what''s going on. > > > I''ve got a SUN X4540 Thumper and setup some zpools. Further I engaged > the powerd configuration to stop the disks when there are idle for a > specified time. > > > Now I noticed that all disks come up once in an hour due to the fmd > scanning the disks or the zpools. And here''s my problem. Which module of > fmd is responsible for that?Tobias, It is probably the "disk-transport" module. It scans the disks once an hour looking for errors I believe.> Is there a possibility to configure or stop > the regarding part of the fmd? >You can try unloading the module: "fmadm unload disk-transport" You should also be able to configure the scan interval by adding an entry to /usr/lib/fm/fmd/plugins/disk-transport.conf file. i.e. setprop interval 24h You need to restart fmd or unload/reload the module for this to take effect. -tarik> I read through the fmd documentation but can''t find a appropriate info. > > regards, > > Tobias > _______________________________________________ > fm-discuss mailing list > fm-discuss at opensolaris.org >
Tarik, thank you. I did some tests and that''s the solution.. regards, Tobias Exner Tarik Soydan - Sun BOS Software schrieb:> On 11/14/08 04:29, Tobias Exner wrote: >> Hi experts, >> >> I need a little help from your site to understand what''s going on. >> >> >> I''ve got a SUN X4540 Thumper and setup some zpools. Further I engaged >> the powerd configuration to stop the disks when there are idle for a >> specified time. >> >> >> Now I noticed that all disks come up once in an hour due to the fmd >> scanning the disks or the zpools. And here''s my problem. Which module >> of fmd is responsible for that? > Tobias, > > It is probably the "disk-transport" module. > It scans the disks once an hour looking for errors I believe. >> Is there a possibility to configure or stop the regarding part of the >> fmd? >> > > You can try unloading the module: > "fmadm unload disk-transport" > > You should also be able to configure the scan interval by adding > an entry to /usr/lib/fm/fmd/plugins/disk-transport.conf file. i.e. > > setprop interval 24h > > You need to restart fmd or unload/reload the module for this to take > effect. > > -tarik > >> I read through the fmd documentation but can''t find a appropriate info. >> >> regards, >> >> Tobias >> _______________________________________________ >> fm-discuss mailing list >> fm-discuss at opensolaris.org >> > >
> Tarik, > > thank you. > > I did some tests and that''s the solution.. > > regards, > > Tobias Exner > > > Tarik Soydan - Sun BOS Software schrieb: > >> On 11/14/08 04:29, Tobias Exner wrote: >> >>> Hi experts, >>> >>> I need a little help from your site to understand what''s going on. >>> >>> >>> I''ve got a SUN X4540 Thumper and setup some zpools. Further I engaged >>> the powerd configuration to stop the disks when there are idle for a >>> specified time. >>> >>> >>> Now I noticed that all disks come up once in an hour due to the fmd >>> scanning the disks or the zpools. And here''s my problem. Which module >>> of fmd is responsible for that? >>> >> Tobias, >> >> It is probably the "disk-transport" module. >> It scans the disks once an hour looking for errors I believe. >>Hi Tarik, I have a question for ZFS power management project. We may need to bypass the scan when the disk is already in low power state in case of race condition between ZFS power off and disk-transport power on. David>>> Is there a possibility to configure or stop the regarding part of the >>> fmd? >>> >>> >> You can try unloading the module: >> "fmadm unload disk-transport" >> >> You should also be able to configure the scan interval by adding >> an entry to /usr/lib/fm/fmd/plugins/disk-transport.conf file. i.e. >> >> setprop interval 24h >> >> You need to restart fmd or unload/reload the module for this to take >> effect. >> >> -tarik >> >> >>> I read through the fmd documentation but can''t find a appropriate info. >>> >>> regards, >>> >>> Tobias >>> _______________________________________________ >>> fm-discuss mailing list >>> fm-discuss at opensolaris.org >>> >>> >> > _______________________________________________ > fm-discuss mailing list > fm-discuss at opensolaris.org >-------------- next part -------------- An HTML attachment was scrubbed... URL: <http://mail.opensolaris.org/pipermail/zfs-discuss/attachments/20081117/c1499927/attachment.html>