[OpenIndiana-discuss] slicing a disk for ZIL

[Sebastian Gabler]

Am 29.11.2012 16:48, schrieb openindiana-discuss-request at openindiana.org:
> Beware, the intel 313 ssd seems to have no power loss protection:
>
> http://ark.intel.com/products/66290/Intel-SSD-313-Series-24GB-mSATA-3Gbs-25nm-SLC
>
> zil is relying on this feature.
(from Michael)

and
> Anyhow, if at all possible - do back up your data before trying this all:)


(from Jim)

I have chosen a device without a supercap because my environment is based on non-enterprise HW. The server has only a single PSU with the option to get a second one. The shelf where the ZIL disk resides has dual PSUs connected. The whole thing is connected to a single phase UPS.
The data that will be affected are for test databases.

As far as I am aware, the loss of the ZIL is no longer fatal for the pool in current zfs versions. As well, even with a corrupted ZIL, the pool should be recoverable. Hence, I was so far not worried too much. Should I better be?

BR

Sebastian