Hello,
as you all know, SSDs as problematic in case of power failure. In some tests, 95% of enterprise SSDs lost their data. DDRdrive is expansive and not compatible with FreeBSD.
I have my HBA in IT mode, so no HW raid for my regular HDDs and want to leave it like that. But I was wondering if buying an BBU HW RAID with 512 MB RAM to be attached to only one drive could be a good ZIL/SLOG. ???
The HP controllers can be set the ratio of write/read cache. So I will set 100% to write cache.
Have somebody tried it before? What was the result? IOs ?
I am thinking about using an classic spinning sata/sas drive behind BBU, since I see no point in using an SSD behind BBU.
Thank you
as you all know, SSDs as problematic in case of power failure. In some tests, 95% of enterprise SSDs lost their data. DDRdrive is expansive and not compatible with FreeBSD.
I have my HBA in IT mode, so no HW raid for my regular HDDs and want to leave it like that. But I was wondering if buying an BBU HW RAID with 512 MB RAM to be attached to only one drive could be a good ZIL/SLOG. ???
The HP controllers can be set the ratio of write/read cache. So I will set 100% to write cache.
Have somebody tried it before? What was the result? IOs ?
I am thinking about using an classic spinning sata/sas drive behind BBU, since I see no point in using an SSD behind BBU.
Thank you