* Adding journal to existing raid5 arrary @ 2016-08-17 20:20 Maarten van Malland 2016-08-17 21:46 ` Song Liu 0 siblings, 1 reply; 5+ messages in thread From: Maarten van Malland @ 2016-08-17 20:20 UTC (permalink / raw) To: linux-raid I was trying to add a previously created raid5 array with: mdadm --add-journal /dev/md3 /dev/sdc That gave an error though: "/dev/md3 does not support journal device /dev/sdc". I'm guessing that happens because the initial array was created without journal support? Is there anything I can do to get this to work without recreating the entire array? ^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: Adding journal to existing raid5 arrary 2016-08-17 20:20 Adding journal to existing raid5 arrary Maarten van Malland @ 2016-08-17 21:46 ` Song Liu 2016-08-18 7:51 ` Maarten van Malland 0 siblings, 1 reply; 5+ messages in thread From: Song Liu @ 2016-08-17 21:46 UTC (permalink / raw) To: maartenvanmalland; +Cc: linux-raid, Song Liu Currently, --add-journal does not support adding journal to an existing array, We plan to add that soon. Song ^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: Adding journal to existing raid5 arrary 2016-08-17 21:46 ` Song Liu @ 2016-08-18 7:51 ` Maarten van Malland 2016-08-18 16:03 ` Song Liu 0 siblings, 1 reply; 5+ messages in thread From: Maarten van Malland @ 2016-08-18 7:51 UTC (permalink / raw) To: Song Liu; +Cc: linux-raid Well that explains that then :-). Is it also planned to support removal of the journal device? I can imagine that there are cases (such as performance issues) that you would like to revert to the old situation... On Wed, Aug 17, 2016 at 11:46 PM, Song Liu <songliubraving@fb.com> wrote: > Currently, --add-journal does not support adding journal to an existing array, > We plan to add that soon. > > Song > ^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: Adding journal to existing raid5 arrary 2016-08-18 7:51 ` Maarten van Malland @ 2016-08-18 16:03 ` Song Liu 2017-05-12 13:19 ` Maarten van Malland 0 siblings, 1 reply; 5+ messages in thread From: Song Liu @ 2016-08-18 16:03 UTC (permalink / raw) To: Maarten van Malland; +Cc: linux-raid@vger.kernel.org Yes, we do plan to add removal as well. Thanks, Song >> On 8/18/16, 12:51 AM, "Maarten van Malland" <maartenvanmalland@gmail.com> wrote: Well that explains that then :-). Is it also planned to support removal of the journal device? I can imagine that there are cases (such as performance issues) that you would like to revert to the old situation... On Wed, Aug 17, 2016 at 11:46 PM, Song Liu <songliubraving@fb.com> wrote: > Currently, --add-journal does not support adding journal to an existing array, > We plan to add that soon. > > Song > ^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: Adding journal to existing raid5 arrary 2016-08-18 16:03 ` Song Liu @ 2017-05-12 13:19 ` Maarten van Malland 0 siblings, 0 replies; 5+ messages in thread From: Maarten van Malland @ 2017-05-12 13:19 UTC (permalink / raw) To: Song Liu; +Cc: linux-raid@vger.kernel.org I was wondering if this is now possible to do with kernel 4.11? It's not completely clear to me from the release notes. Thank you, Maarten On Thu, Aug 18, 2016 at 6:03 PM, Song Liu <songliubraving@fb.com> wrote: > Yes, we do plan to add removal as well. > > Thanks, > Song > >>> On 8/18/16, 12:51 AM, "Maarten van Malland" <maartenvanmalland@gmail.com> wrote: > > Well that explains that then :-). Is it also planned to support > removal of the journal device? I can imagine that there are cases > (such as performance issues) that you would like to revert to the old > situation... > > On Wed, Aug 17, 2016 at 11:46 PM, Song Liu <songliubraving@fb.com> wrote: > > Currently, --add-journal does not support adding journal to an existing array, > > We plan to add that soon. > > > > Song > > > > ^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2017-05-12 13:19 UTC | newest] Thread overview: 5+ messages (download: mbox.gz follow: Atom feed -- links below jump to the message on this page -- 2016-08-17 20:20 Adding journal to existing raid5 arrary Maarten van Malland 2016-08-17 21:46 ` Song Liu 2016-08-18 7:51 ` Maarten van Malland 2016-08-18 16:03 ` Song Liu 2017-05-12 13:19 ` Maarten van Malland
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