Quote Originally Posted by gordo View Post
Is the 830 going to hit 6PB at this block failure rate?

Incidentally, looks like a typo on the WLC number...
I believe so, but maybe not by much. There was a typo in the last update's WLC, this one is right. Incidentally, because the read and write failures are so steady and predictable, I think it bodes well for 6PB.

Quote Originally Posted by vpr5703 View Post
When write amplification is taken into account, 24K Write Cycles sounds right. At 5.5PiB write, that is 22528 WLC. But that assumes a perfect 1.0 write amp. rate, which only a few SSDs can accomplish using compression (SandForce chips, I think). If we assume that 24781 WLC is the entire drive, then the drive has has 6.05 PiB written. 6.05 / 5.5 is a write amplification rate of ~ 1.1 Not too bad!
The WLC is probably accurate for the whole drive, but most WLCs are usually for just a single device/channel/etc. I figured WA at 1.1 -- if you take the LBA written and divide it by WLC you get about 231GB written per PE cycle. lBA writes are ahead of ASU by about 15GB (I "lost" some writes for about 14 hours one day).