I think that the least disruptive way would be to detach the HDD from the ZIL mirror and offline it, remove and replace with an SSD, and then attach the SSD to the ZIL to make it a mirror again. Note that this would create a window of possible ZIL failure (and you had such a window already when the first SSD died), but the system *should* survive that (fall back to on-pool ZIL after a short timeout of the dedicated device) unless the power dies during this time.
----- Исходное сообщение ----- От: Carsten John <cj...@mpi-bremen.de> Дата: Monday, June 27, 2011 13:21 Тема: [zfs-discuss] replace zil drive Кому (To): zfs-discuss@opensolaris.org > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > Hello everybody, > > some time ago a SSD within a ZIL mirror died. As I had no SSD > availableto replace it, I dropped in a normal SAS harddisk to > rebuild the mirror. > > In the meantime I got the warranty replacement SSD. > > Now I'm wondering about the best option to replace the HDD with > the SSD: > > 1. Remove the log mirror, put the new disk in place, add log mirror > > 2. Pull the HDD, forcing the mirror to fail, replace the HDD > with the SSD > > Unfortunately I have no free slot in the JBOD available (want to keep > the ZIL in the same JBAD as the rest of the pool): > > 3. Put additional temporary SAS HDD in free slot of different JBOD, > replace the HDD in the ZIL mirror with temporary HDD, pull now unused > HDD, use free slot for SSD, replace temporary HDD with SSD. > > > > Any suggestions? > > > thx > > > > Carsten > > > > > > - -- > Max Planck Institut fuer marine Mikrobiologie > - - Network Administration - > Celsiustr. 1 > D-28359 Bremen > Tel.: +49 421 2028568 > Fax.: +49 421 2028565 > PGP public key:http://www.mpi-bremen.de/Carsten_John.html > -----BEGIN PGP SIGNATURE----- > Version: GnuPG v1.4.10 (GNU/Linux) > Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ > > iEYEARECAAYFAk4ISy8ACgkQsRCwZeehufs9MQCfetuYQwjbqH2Rb7qyY8G4vxaQ > TvUAoNcHPnHED1Ykat8VHF8EJIRiPmct > =jwZQ > -----END PGP SIGNATURE----- > _______________________________________________ > zfs-discuss mailing list > zfs-discuss@opensolaris.org > http://mail.opensolaris.org/mailman/listinfo/zfs-discuss -- +============================================================+ | | | Климов Евгений, Jim Klimov | | технический директор CTO | | ЗАО "ЦОС и ВТ" JSC COS&HT | | | | +7-903-7705859 (cellular) mailto:jimkli...@cos.ru | | CC:ad...@cos.ru,jimkli...@gmail.com | +============================================================+ | () ascii ribbon campaign - against html mail | | /\ - against microsoft attachments | +============================================================+
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