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Zero Bytes after a few seconds
We've been receiving a strange zero bytes issue when saving files. We are running a few iMacs on the network, it's a mix machines running MacOS Monterey down to High Sierra. We can save a varie...
pdaly12 wrote:
ER -- ST COUNT LBA_48 LH LM LL DV DC -- -- -- == -- == == == -- -- -- -- -- 40 -- 51 05 40 00 00 3f 3b 24 58 40 00 Error: UNC at LBA = 0x3f3b2458 = 1060840536
The times can be very useful here (though you have to translate them from power-on hours to actual time).
Also, after you replace the disks, I suggest setting up a maintenance schedule (settings wheel of the volume). You can schedule
- defrag
- balance
- scrub
- disk test
Personally I run one of these each month (cyclling through all 4 3X a year).
Definitely wait until you have healthy disks installed though.
To be honest, I'll just take a hammer to the old disks, not really worried about the timings, etc. I'm hoping this is the cause of the bizarre issues we've been experiencing.
Yes I have the defrag and scrub running once a month. Didn't know about the balance until I saw that setting yesterday.
We're trying to avoid using the NAS until the disks arrive in the next hour or so. I did a smart check on our web servers just in case and one of those has a high error rate, so We're getting that one replaced too.
I might grab another readynas and install it at home as a spare and mirror this one to it as a nice offsite backup.
pdaly12 wrote:
To be honest, I'll just take a hammer to the old disks, not really worried about the timings, etc. I'm hoping this is the cause of the bizarre issues we've been experiencing.
I was thinking that if you were seeing a lot of recent UNCs, that would bolster that your issues are disk-related. It might also give you a clue on what disk needs to be replaced first.
Since you have multiple disks throwing errors, there is more risk than usual that the volume will fail during resync. So you might need to restore it from backup.
New drives arrived. hot swapped one over.... so far so good. ...Resynch ETA: 2hrs
Only issue I discovered is that after I plugged one in, I received a warning saying that its a slower drive. I didn;t realise that the new drives are no longer 7200rpm. Instead they're 5900rpm and the ReadyNAS is running with 'degraded performance. Only the Pro drives are 7200rpm! grrr!
Any thoughts on this? will the faster drives spin down to match the 5900rpm? for the price of the Seagate IronWolfs I might swap them all over to match the same 5900rpm. It's not like there's much of a speed difference on saving files.
pdaly12 wrote:
Any thoughts on this? will the faster drives spin down to match the 5900rpm?
Everything will still work. As far as performance goes, I don't think you'll see any drop off in read or write speeds, but you might see some drop off with random access (where seek times come into play).
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