Re: Test disk reliability (or HGST HTS721010A9E630 surprisingly reliable)

On 12/20/15 1:09 PM, Félix GERZAGUET wrote:

After reading
http://www.postgresql.org/docs/current/static/wal-reliability.html, I
tried the recommended diskchecker.pl
<http://brad.livejournal.com/2116715.html> but I am not satisfied:

I always get:
Total errors: 0

even if I tested with with a HGST HTS721010A9E630 that the vendor's
datasheet
(http://www.hgst.com/sites/default/files/resources/TS7K1000_ds.pdf)
advertise as "
Designed for low duty cycle, non mission-critical applications in
PC,nearline and consumer electronics environments, which vary
application to application
"

Since it is not, a high end disk, I expect some errors.

Why? Just because a disk isn't enterprise-grade doesn't mean it has to lie about fsync, which is the only thing diskchecker.pl tests for.