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Write timeouts with different disk packs - Printable Version

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Write timeouts with different disk packs - lortz987 - 02-06-2017 07:34 PM

I have a puzzling issue with my Drobo 5N.

With a disk pack consisting of 5 x 4TB HGST drives installed, my Drobo boots, mounts, and reads files just fine. However, when trying to write to the share my write function stops and eventually times out. The Drobo activity LED remains active for a few minutes after timeout. This happens with any transfer more than a few hundred MB or so.

After 5-10 retries of the same write the Drobo is fine - I can write/read with no issues at all until reboot.

Here's where it gets weird. With a disk pack consisting of 5 x 3TB Western Digital drives installed my Drobo functions perfectly. No problems at all with read or write. This behavior is consistently reproducible. Any time I switch to the HGST drives I get the same problem.

The WD disk pack was the original set with my 5N. Any insight into why I'm having trouble with writing to my larger disk pack? Anything I can do to fix the problem?


RE: Write timeouts with different disk packs - Paul - 02-08-2017 04:49 PM

hi lortz987,
maybe some of the HGST drives are behaving in certain ways, (or possibly having some bad sectors that are being re-allocated often, causing delays, until it starts working again), but would you be able to post back with exact model numbers and info about all the drives if you can? (partly from the below, if your dashboard version has this feature)

if you can also have a look in dashboard, can you click on each of the drives and see if there is any additional info there, next to model info, such as a Warning, or Healed label for any of the drives?


RE: Write timeouts with different disk packs - uffimivab - 06-10-2017 05:53 AM

I like it