How to minimize the number of writes to CF card?
Matthew Seaman
matthew at FreeBSD.org
Tue Aug 25 11:47:04 UTC 2015
On 2015/08/25 12:38, Matthew Seaman wrote:
> On 2015/08/25 12:02, zhup wrote:
>> My proposal of solution with "noatime" and "softdep" flag:
>>
>> # vi /etc/fstab
>> /dev/sd0a / ffs rw,noatime,softdep 1 1
>>
>> What to you think about it?
>
> 'softdep' is not something FreeBSD understands. (I think it's an
> OpenBSD-ism)
To clarify: it's not something that FreeBSD understands in fstab(5).
You can use tunefs to enable / disable soft updates on a filesystem:
tunefs -n enable /dev/sd0a
(unmount the FS first)
However, I don't think softupdates has much effect on the /number/ or
writes made to the filesystem. It's all about re-ordering writes to
ensure metadata consistency.
Cheers,
Matthew
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 972 bytes
Desc: OpenPGP digital signature
URL: <http://lists.freebsd.org/pipermail/freebsd-questions/attachments/20150825/94783402/attachment.bin>
More information about the freebsd-questions
mailing list