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Video playback stutters after firmware update
09-12-2016, 09:13 PM
Post: #21
RE: Video playback stutters after firmware update
Log for tonight has:
Code:
Sep 12 19:07:12 TV-Mac-mini iTunes[45036]: <<<< FigByteStream >>>> FigByteStreamStatsLogOneRead: ByteStream read of 262144 bytes @ 61603840 took 1.628722 secs. to complete, 1 reads >= 1 sec.
Sep 12 19:19:56 TV-Mac-mini iTunes[45036]: <<<< FigByteStream >>>> FigByteStreamStatsLogOneRead: ByteStream read of 262144 bytes @ 228327424 took 0.901833 sec. to complete, 2 reads >= 0.5 sec.
Sep 12 19:29:45 TV-Mac-mini iTunes[45036]: <<<< FigByteStream >>>> FigByteStreamStatsLogOneRead: ByteStream read of 8 bytes @ 339700228 took 0.500883 sec. to complete, 1 reads >= 0.5 sec.
Sep 12 20:59:27 TV-Mac-mini iTunes[45036]: <<<< FigByteStream >>>> FigByteStreamStatsLogOneRead: ByteStream read of 262144 bytes @ 112459776 took 0.949084 sec. to complete, 1 reads >= 0.5 sec.
Sep 12 21:02:56 TV-Mac-mini iTunes[45036]: <<<< FigByteStream >>>> FigByteStreamStatsLogOneRead: ByteStream read of 262144 bytes @ 154927104 took 0.812034 sec. to complete, 2 reads >= 0.5 sec.
Sep 12 21:22:58 TV-Mac-mini iTunes[45036]: <<<< FigByteStream >>>> FigByteStreamStatsLogOneRead: ByteStream read of 262144 bytes @ 46661632 took 1.987010 secs. to complete, 1 reads >= 1 sec.

During that time I watched five 30 minute episodes of Doctor Who that I'd ripped of PAL DVDs. So 6 instances were iTunes noticed longer than expected disk reads, which is much better than the 39 that occurred on the 9th over the course of just one episode.

I noticed the one just after 7pm (19:07), but none of the others. I suspect I'd have noticed the one at 21:22, but around then I'd stepped into the kitchen to grab a drink. The other 4 delays must have been brief enough not to have been noticeable.

On the 9th iTunes was the only program with disk activity. Tonight EyeTV (DVR software) was recording 2-4 shows during prime time to the Drobo while I was watching Doctor Who off the Drobo, so it's possible the delays iTunes logged were caused that.
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09-15-2016, 12:11 PM
Post: #22
RE: Video playback stutters after firmware update
Watched an episode during lunch, lots of stutter yet no recordings were occurring so only iTunes was using the Drobo:
Code:
Sep 15 12:00:52 TV-Mac-mini iTunes[56791]: <<<< FigByteStream >>>> FigByteStreamStatsLogOneRead: ByteStream read of 262144 bytes @ 4194304 took 1.581067 secs. to complete, 1 reads >= 1 sec.
Sep 15 12:00:57 TV-Mac-mini iTunes[56791]: <<<< FigByteStream >>>> FigByteStreamStatsLogOneRead: ByteStream read of 262144 bytes @ 6029312 took 0.864264 sec. to complete, 2 reads >= 0.5 sec.
Sep 15 12:01:29 TV-Mac-mini iTunes[56791]: <<<< FigByteStream >>>> FigByteStreamStatsLogOneRead: ByteStream read of 262144 bytes @ 10485760 took 1.665400 secs. to complete, 2 reads >= 1 sec.
Sep 15 12:02:04 TV-Mac-mini iTunes[56791]: <<<< FigByteStream >>>> FigByteStreamStatsLogOneRead: ByteStream read of 262144 bytes @ 23592960 took 0.810937 sec. to complete, 4 reads >= 0.5 sec.
Sep 15 12:02:38 TV-Mac-mini iTunes[56791]: <<<< FigByteStream >>>> FigByteStreamStatsLogOneRead: ByteStream read of 262144 bytes @ 33030144 took 0.854051 sec. to complete, 5 reads >= 0.5 sec.
Sep 15 12:03:13 TV-Mac-mini iTunes[56791]: <<<< FigByteStream >>>> FigByteStreamStatsLogOneRead: ByteStream read of 262144 bytes @ 39321600 took 0.880334 sec. to complete, 6 reads >= 0.5 sec.
Sep 15 12:03:44 TV-Mac-mini iTunes[56791]: <<<< FigByteStream >>>> FigByteStreamStatsLogOneRead: ByteStream read of 262144 bytes @ 46137344 took 0.794520 sec. to complete, 7 reads >= 0.5 sec.
Sep 15 12:04:58 TV-Mac-mini iTunes[56791]: <<<< FigByteStream >>>> FigByteStreamStatsLogOneRead: ByteStream read of 262144 bytes @ 61865984 took 1.410986 secs. to complete, 3 reads >= 1 sec.
Sep 15 12:05:33 TV-Mac-mini iTunes[56791]: <<<< FigByteStream >>>> FigByteStreamStatsLogOneRead: ByteStream read of 262144 bytes @ 69730304 took 1.200740 secs. to complete, 4 reads >= 1 sec.
Sep 15 12:06:13 TV-Mac-mini iTunes[56791]: <<<< FigByteStream >>>> FigByteStreamStatsLogOneRead: ByteStream read of 262144 bytes @ 78905344 took 1.528990 secs. to complete, 5 reads >= 1 sec.
Sep 15 12:06:45 TV-Mac-mini iTunes[56791]: <<<< FigByteStream >>>> FigByteStreamStatsLogOneRead: ByteStream read of 262144 bytes @ 86507520 took 0.935177 sec. to complete, 11 reads >= 0.5 sec.
Sep 15 12:07:35 TV-Mac-mini iTunes[56791]: <<<< FigByteStream >>>> FigByteStreamStatsLogOneRead: ByteStream read of 262144 bytes @ 99352576 took 1.185022 secs. to complete, 6 reads >= 1 sec.
Sep 15 12:08:42 TV-Mac-mini iTunes[56791]: <<<< FigByteStream >>>> FigByteStreamStatsLogOneRead: ByteStream read of 262144 bytes @ 112197632 took 1.557334 secs. to complete, 7 reads >= 1 sec.
Sep 15 12:09:14 TV-Mac-mini iTunes[56791]: <<<< FigByteStream >>>> FigByteStreamStatsLogOneRead: ByteStream read of 262144 bytes @ 119013376 took 1.719624 secs. to complete, 8 reads >= 1 sec.
Sep 15 12:10:21 TV-Mac-mini iTunes[56791]: <<<< FigByteStream >>>> FigByteStreamStatsLogOneRead: ByteStream read of 262144 bytes @ 136839168 took 0.718507 sec. to complete, 15 reads >= 0.5 sec.
Sep 15 12:10:29 TV-Mac-mini iTunes[56791]: <<<< FigByteStream >>>> FigByteStreamStatsLogOneRead: ByteStream read of 262144 bytes @ 138412032 took 0.785219 sec. to complete, 16 reads >= 0.5 sec.
Sep 15 12:11:43 TV-Mac-mini iTunes[56791]: <<<< FigByteStream >>>> FigByteStreamStatsLogOneRead: ByteStream read of 262144 bytes @ 155451392 took 1.051376 secs. to complete, 9 reads >= 1 sec.
Sep 15 12:12:01 TV-Mac-mini iTunes[56791]: <<<< FigByteStream >>>> FigByteStreamStatsLogOneRead: ByteStream read of 262144 bytes @ 160694272 took 1.396279 secs. to complete, 10 reads >= 1 sec.
Sep 15 12:12:33 TV-Mac-mini iTunes[56791]: <<<< FigByteStream >>>> FigByteStreamStatsLogOneRead: ByteStream read of 262144 bytes @ 167772160 took 0.714404 sec. to complete, 19 reads >= 0.5 sec.
Sep 15 12:12:51 TV-Mac-mini iTunes[56791]: <<<< FigByteStream >>>> FigByteStreamStatsLogOneRead: ByteStream read of 262144 bytes @ 171442176 took 0.554749 sec. to complete, 20 reads >= 0.5 sec.
Sep 15 12:14:12 TV-Mac-mini iTunes[56791]: <<<< FigByteStream >>>> FigByteStreamStatsLogOneRead: ByteStream read of 262144 bytes @ 188219392 took 1.042197 secs. to complete, 11 reads >= 1 sec.
Sep 15 12:14:30 TV-Mac-mini iTunes[56791]: <<<< FigByteStream >>>> FigByteStreamStatsLogOneRead: ByteStream read of 262144 bytes @ 192675840 took 1.388375 secs. to complete, 12 reads >= 1 sec.
Sep 15 12:15:02 TV-Mac-mini iTunes[56791]: <<<< FigByteStream >>>> FigByteStreamStatsLogOneRead: ByteStream read of 262144 bytes @ 201588736 took 1.680568 secs. to complete, 13 reads >= 1 sec.
Sep 15 12:15:20 TV-Mac-mini iTunes[56791]: <<<< FigByteStream >>>> FigByteStreamStatsLogOneRead: ByteStream read of 262144 bytes @ 205783040 took 1.451477 secs. to complete, 14 reads >= 1 sec.
Sep 15 12:15:52 TV-Mac-mini iTunes[56791]: <<<< FigByteStream >>>> FigByteStreamStatsLogOneRead: ByteStream read of 262144 bytes @ 214695936 took 1.576746 secs. to complete, 15 reads >= 1 sec.
Sep 15 12:17:31 TV-Mac-mini iTunes[56791]: <<<< FigByteStream >>>> FigByteStreamStatsLogOneRead: ByteStream read of 262144 bytes @ 240386048 took 1.075336 secs. to complete, 16 reads >= 1 sec.
Sep 15 12:18:21 TV-Mac-mini iTunes[56791]: <<<< FigByteStream >>>> FigByteStreamStatsLogOneRead: ByteStream read of 262144 bytes @ 252968960 took 1.329373 secs. to complete, 17 reads >= 1 sec.
Sep 15 12:19:37 TV-Mac-mini iTunes[56791]: <<<< FigByteStream >>>> FigByteStreamStatsLogOneRead: ByteStream read of 262144 bytes @ 272629760 took 0.756045 sec. to complete, 28 reads >= 0.5 sec.
Sep 15 12:20:00 TV-Mac-mini iTunes[56791]: <<<< FigByteStream >>>> FigByteStreamStatsLogOneRead: ByteStream read of 262144 bytes @ 279969792 took 1.105017 secs. to complete, 18 reads >= 1 sec.
Sep 15 12:20:16 TV-Mac-mini iTunes[56791]: <<<< FigByteStream >>>> FigByteStreamStatsLogOneRead: ByteStream read of 262144 bytes @ 283901952 took 1.453773 secs. to complete, 19 reads >= 1 sec.
Sep 15 12:20:19 TV-Mac-mini iTunes[56791]: <<<< FigByteStream >>>> FigByteStreamStatsLogOneRead: ByteStream read of 262144 bytes @ 284688384 took 0.516634 sec. to complete, 31 reads >= 0.5 sec.
Sep 15 12:20:44 TV-Mac-mini iTunes[56791]: <<<< FigByteStream >>>> FigByteStreamStatsLogOneRead: ByteStream read of 262144 bytes @ 290717696 took 1.488699 secs. to complete, 20 reads >= 1 sec.
Sep 15 12:21:51 TV-Mac-mini iTunes[56791]: <<<< FigByteStream >>>> FigByteStreamStatsLogOneRead: ByteStream read of 262144 bytes @ 307232768 took 1.723742 secs. to complete, 21 reads >= 1 sec.
Sep 15 12:21:54 TV-Mac-mini iTunes[56791]: <<<< FigByteStream >>>> FigByteStreamStatsLogOneRead: ByteStream read of 262144 bytes @ 308281344 took 0.693555 sec. to complete, 34 reads >= 0.5 sec.
Sep 15 12:22:26 TV-Mac-mini iTunes[56791]: <<<< FigByteStream >>>> FigByteStreamStatsLogOneRead: ByteStream read of 262144 bytes @ 314834944 took 1.302982 secs. to complete, 22 reads >= 1 sec.
Sep 15 12:23:00 TV-Mac-mini iTunes[56791]: <<<< FigByteStream >>>> FigByteStreamStatsLogOneRead: ByteStream read of 262144 bytes @ 325320704 took 0.827890 sec. to complete, 36 reads >= 0.5 sec.
Sep 15 12:23:35 TV-Mac-mini iTunes[56791]: <<<< FigByteStream >>>> FigByteStreamStatsLogOneRead: ByteStream read of 262144 bytes @ 336068608 took 1.909580 secs. to complete, 23 reads >= 1 sec.
Sep 15 12:24:10 TV-Mac-mini iTunes[56791]: <<<< FigByteStream >>>> FigByteStreamStatsLogOneRead: ByteStream read of 262144 bytes @ 346816512 took 1.506816 secs. to complete, 24 reads >= 1 sec.
Sep 15 12:24:45 TV-Mac-mini iTunes[56791]: <<<< FigByteStream >>>> FigByteStreamStatsLogOneRead: ByteStream read of 262144 bytes @ 354942976 took 1.721919 secs. to complete, 25 reads >= 1 sec.

Full diagnostic log on my site:
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09-23-2016, 05:08 PM (This post was last modified: 09-23-2016 07:58 PM by SpiceWare.)
Post: #23
RE: Video playback stutters after firmware update
Ordered a Dual Dock and a couple more 8 TB drives. I set them up as a software mirrored RAID, then backed up the contents of the Drobo to it.

Went to Reset the Drobo as a 64 TB volume on the off chance that having a 16 TB volume was related to the stutter when I noticed that the Dashboard showed Warning for the health of one of the other 6TB drives. I suspect that's worse than the "Healed" I saw back on the 9th.

So I replaced that 6 TB with a 3 TB I had previously pulled from the Drobo so I now have a 4, 6, 8 and two 3 TB drives in there. Using the old drive gave me enough room with Dual Disk Redundancy turned on to restore my data.

I then reset the Drobo as a 64 TB volume and am now restoring the contents from the mirrored RAID backup. Hopefully once that's done the stutter will be gone.
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09-23-2016, 05:27 PM (This post was last modified: 09-23-2016 05:28 PM by Paul.)
Post: #24
RE: Video playback stutters after firmware update
hi spiceware, as far as remember, healed is when the drobo was able to fix/recover from and continue after a hard drive error, and that warning was when it seems to be encountering more and more of the healed.... maybe that drive has been also having some issues that were causing it as you mention.

(you may already be doing so, though if you can, try to copy the data from your dualdock, instead of move, just to play safe for now)

(btw i have XP home SP2, a Drobo v1 with 2x 1TB/2x 1.5TB WD greens, & a bkp Drobo v2 with the same + a DroboShare: unused)
& a DroboS v2 with 3xWD15EADS &2x1TB in DDR mode on win7, & a drobo5D (all usb)
  • btw i did a sustained (write) operation for about 6 hours, and got 13.2MB / sec ...objection? "sustained" :)
    (16.7MB/s on a v2 & 47-96MB/s drobo-s)
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09-23-2016, 08:10 PM
Post: #25
RE: Video playback stutters after firmware update
Yeah, I'm hoping the source of the video playback stutter was due to the Drobo encountering and fixing problems with those two 6 TB drives. Probably explains why the stutter would clear up, then return again.

Yep - copying, not moving, the data from the dual dock. My original plan was to wait a week or so to make sure everything's OK, then use the new drives to replace the 3 TB drives. I think I'll hold off for a while, maybe even until the Drobo requests a larger drive, in case the third 6 TB drive starts to have problems.
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09-26-2016, 02:59 PM
Post: #26
RE: Video playback stutters after firmware update
ok cool, fingers crossed it all goes well for you

(btw i have XP home SP2, a Drobo v1 with 2x 1TB/2x 1.5TB WD greens, & a bkp Drobo v2 with the same + a DroboShare: unused)
& a DroboS v2 with 3xWD15EADS &2x1TB in DDR mode on win7, & a drobo5D (all usb)
  • btw i did a sustained (write) operation for about 6 hours, and got 13.2MB / sec ...objection? "sustained" :)
    (16.7MB/s on a v2 & 47-96MB/s drobo-s)
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10-18-2016, 02:51 AM
Post: #27
RE: Video playback stutters after firmware update
Hi Spiceware:

I see that firmware 3.5.1 has now been released - this might be useful for your stuttering video problem...

Please let us know!

Pants.
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11-26-2016, 05:22 PM (This post was last modified: 11-26-2016 05:22 PM by SpiceWare.)
Post: #28
RE: Video playback stutters after firmware update
I manually downloaded and installed 3.5.1 about a month ago as Drobo Dashboard didn't pick up on the new version (clicking on Check for Updates didn't help either). Sadly 3.5.1 didn't help, video playback still stutters.

I see 3.5.2 was released on Monday. I just finished manually installing it as once again Drobo Dashboard thinks I'm up to date.
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11-27-2016, 06:06 PM
Post: #29
RE: Video playback stutters after firmware update
Got to thinking - I haven't noticed stutter occurring in EyeTV for a while, just iTunes.

I did a few tests and if I do this:
  1. select a show in iTunes
  2. right-click then select Show in Finder
  3. right-click then Open in QuickTime

the show plays back without stutter. The content is still on the Drobo.

I'll have to monitor this some more, but it appears there's a new factor in play.

My Mac mini's still running 10.11.6 El Capitan as the program I use to tag content I've ripped off my DVDs and Blu-rays no longer runs under macOS Sierra 10.12.1. I need to find a different solution as the developer is no longer supporting it.
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11-28-2016, 08:47 PM (This post was last modified: 11-28-2016 08:48 PM by Paul.)
Post: #30
RE: Video playback stutters after firmware update
yes the plot thickens... try to see if you can keep opening in finder and play via quicktime without issues, as maybe itunes is doing some extra/fancy stuff in the background that is slowing things down.
(possibly even making metadata notes of how often a file is paused, or volume is changed, or something else behind the scenes?)

(btw killjoys looks cool) Smile
btw, do you use spotify?
unless im mistaken, that has been having a detrimental effect on hard drives (especially ssds) recently.

(btw i have XP home SP2, a Drobo v1 with 2x 1TB/2x 1.5TB WD greens, & a bkp Drobo v2 with the same + a DroboShare: unused)
& a DroboS v2 with 3xWD15EADS &2x1TB in DDR mode on win7, & a drobo5D (all usb)
  • btw i did a sustained (write) operation for about 6 hours, and got 13.2MB / sec ...objection? "sustained" :)
    (16.7MB/s on a v2 & 47-96MB/s drobo-s)
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