On 7/15/17 10:12 PM, Shreyans Jain wrote:
If we have write cache off, do we need a ups or some other power backup ?
I'm not an expert on ups's, but my understanding is that they provide
other kinds of protective power conditioning which you would want in a
production environment. See, for instance,
https://en.wikipedia.org/wiki/Uninterruptible_power_supply.
Hope this helps,
-Rick
On Sat, Jul 15, 2017 at 8:02 PM, Rick Hillegas
<rick.hille...@gmail.com <mailto:rick.hille...@gmail.com>> wrote:
On 7/14/17 6:21 PM, Shreyans Jain wrote:
If we have a ups and we properly shutdown the OS, will then we
have to disable write cache for the hard-disk in order to
prevent data corruption. Are there any chances left for the
data to be corrupted by power failure with write cache on?
Regards,
Shreyans Jain
That will reduce your risk. But operating systems can crash before
flushing the cache to disk.
