06-09-2015 04:12 AM
Hi,
There's a lot of conflicting information on the Internet about the SSD 730, presence (or otherwise) of capacitors, and write cache protection on power loss.
I need an SSD that will reliably survive sudden power loss (for ZFS intent log). I know that the S3500 and S3700 models will do this.
Will the SSD 730 reliably survive sudden power loss without loss of data resident in the write cache?
Thanks,
06-10-2015 03:26 AM
Somebody from Intel has replied to this privately to me... They said:
According to its official specification, the Intel=C2=AE SSD 730 Series currently does not support sudden power loss protection.
Check here for further reference: http://ark.intel.com/products/81039/Intel-SSD-730-Series-480GB-2_5in-SATA-6Gbs-20nm-MLC http://ark.intel.com/products/81039/Intel-SSD-730-Series-480GB-2_5in-SATA-6Gbs-20nm-MLC ARK | Intel=C2=AE SSD 730 Series (480GB, 2.5in SATA 6Gb/s, 20nm, MLC
However, this feature is currently supported on the Data Center SSDs such as the Intel=C2=AE SSD DC S3700 and the Intel=C2=AE SSD DC S3500 as you hav mentioned above.
I appreciate the response, but it beats me why they want to keep it secret... The static on the Internet on this subject is all completely unresolved... and very annoying.
06-11-2015 08:48 AM
gpw928,
We would like to inform you that we have received confirmation that PLI (Power Loss Imminent) is fully functional in the Intel® SSD 730 Series, and it is supported for internal SSD operations. The Intel® SSD 730 Series incorporates power loss protection circuitry, capacitors and firmware support to help protect user data.