mdraid RAID1 write performance issues

[Net Llama!]

On Sat, Dec 15, 2012 at 4:54 PM, Net Llama! <netllama at linux-sxs.org> wrote:
> On Sat, Dec 15, 2012 at 4:43 PM, Michael Hipp <michael at redmule.com> wrote:
>> On 12/15/2012 5:57 PM, Lonni J Friedman wrote:
>>> Does anyone have any suggestions or ideas on what's going on here?
>>
>> I've seen bad/flakey SATA ports cause these kinds of troubles. Trying switching
>> the disks to different ports, or get a PCI SATA card if you're out of ports.
>
> Hrmm, I guess I can give that a try, although it seems unlikely that
> it would be HW when reads are fast and writes are not.

To close the loop, I fixed this problem by replacing & upgrading the
disks.  I tried switching to different SATA ports on the mobo, but
that made no difference.  My best guess is that something in the disk
firmware just wasn't compatible with something else.


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L. Friedman                                    netllama at gmail.com
LlamaLand                       https://netllama.linux-sxs.org