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» Film-Tech Forum ARCHIVE   » Operations   » Digital Cinema Forum   » Lost a show / Learned a lesson (Page 2)

 
This topic comprises 3 pages: 1  2  3 
 
Author Topic: Lost a show / Learned a lesson
Bernie Anderson Jr
Master Film Handler

Posts: 435
From: Woodbridge, New Jersey
Registered: Apr 2000


 - posted 02-13-2012 06:34 AM      Profile for Bernie Anderson Jr   Author's Homepage   Email Bernie Anderson Jr   Send New Private Message       Edit/Delete Post 
I've gotten my Sonys to take an ingest to 99% without a problem and actually playback. Most of the problems I had with the Sonys was Software versions out of date and not matched from projector to projector. Sony came in 2 weeks ago and updated everything and we're working perfect now. So its probably a bad drive. I had issues when the ingest was disrupted for some reason and you had to reboot. The content would get corrupted and you would have to delete the incomplete file and re-ingest.

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Geoff Newitt
Film Handler

Posts: 49
From: FARINGDON, OXFORDSHIRE, UK
Registered: Dec 2011


 - posted 02-13-2012 10:14 AM      Profile for Geoff Newitt   Email Geoff Newitt   Send New Private Message       Edit/Delete Post 
Unlike Brad, I have seen Doremi servers with very full RAIDs do some wacky things - failing to execute macros, skipping content. I'm also told they have a limit to the number of 'clips' they can keep track of - 1024 is the number that comes to mind; sounds like a lot, but in the UK we have extensive Ad reels, with each advert an individual CPL... One of our cinemas managed to have 1035 CPLs on one server through poor management of their content, and this definitely caused problems.

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Frank Cox
Film God

Posts: 2234
From: Melville Saskatchewan Canada
Registered: Apr 2011


 - posted 02-13-2012 11:03 AM      Profile for Frank Cox   Author's Homepage   Email Frank Cox   Send New Private Message       Edit/Delete Post 
One other thing that I've had happen here (twice so far): The screws that hold the CRU drive together were loose. There are either 4 or 6 small screws on the bottom of the drive that attach the top of the housing to the bottom. I noticed the loose screws before I tried ingesting the content, so I tightened 'em up before inserting them into the drive bay.

Perhaps loose screws could lead to wobble in the drive platters and cause the content to either not read or to read very slowly.

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Edward Havens
Jedi Master Film Handler

Posts: 614
From: Los Angeles, CA
Registered: Mar 2008


 - posted 02-13-2012 11:24 AM      Profile for Edward Havens   Email Edward Havens   Send New Private Message       Edit/Delete Post 
The only times I ever have trouble with slow loads from a hard drive is when we are asking the LMS Server to do multiple tasks at the same time. I have trained my staff, not always successfully, to not do any transfers to individual screen servers when ingesting, and to never do more than two transfers at the same time. But then, I have 14 screens to contend with.

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Manny Knowles
"What are these things and WHY are they BLUE???"

Posts: 4247
From: Bloomington, IN, USA
Registered: Feb 2002


 - posted 02-13-2012 12:11 PM      Profile for Manny Knowles   Email Manny Knowles   Send New Private Message       Edit/Delete Post 
quote: Mike Blakesley
Normally it only takes about 20 - 25 minutes to load a whole movie
My DSS-200 normally takes about an hour to load and another hour to verify.

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Mike Blakesley
Film God

Posts: 12767
From: Forsyth, Montana
Registered: Jun 99


 - posted 02-13-2012 01:25 PM      Profile for Mike Blakesley   Author's Homepage   Email Mike Blakesley   Send New Private Message       Edit/Delete Post 
Space isn't an issue. I always delete last week's movie before putting this week's in, and I keep the trailers trimmed back too.

The reload finished sometime during the night, but when I tried it out this morning the problem was still the same.

Doing some further looking, I noticed that there are three filnames associated with this movie, due to the captioning available. There is a CCAP file, an OCAP file and the third one has neither of those notations. All three in the 120gb size range. (The movie in question is "Red Tails.")

I first thought that third file, the one with no caption notation, would be the one used to play the movie from without captions, but in the info sheet, it said to use the "CCAP" file to play the film without captions, so that's what I've been doing.

This morning I ran the "Verify" test on all three of those files and the one with no notation in the name came back showing a failure. So right now I'm reloading that file again. It should be done by tonight and I'll report back what happens. (I had run the verify on the "CCAP" file previously, since that's the one I was playing from, and it showed no problems. So maybe it uses both of those files somehow??)

quote: Richard Orsak
How were you able to book 2 features on a single screen. I've tried many, many times, but never had any luck (unless one of them was basically on second run and I wouldn't want that)...
That's basically it...one older movie plus a newer, semi-popular one.

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Monte L Fullmer
Film God

Posts: 8367
From: Nampa, Idaho, USA
Registered: Nov 2004


 - posted 02-13-2012 09:34 PM      Profile for Monte L Fullmer   Email Monte L Fullmer   Send New Private Message       Edit/Delete Post 
Ya, have to watch out for the last section of the filename in the naming convention of the "OV" (original version) and the "VF" which are the patches that goes with the "OV" version, after the "OV" version is ingested first.

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Chad Bateman
Film Handler

Posts: 16
From: Salt Lake City Ut, USA
Registered: Dec 2010


 - posted 02-14-2012 03:46 PM      Profile for Chad Bateman   Author's Homepage   Email Chad Bateman   Send New Private Message       Edit/Delete Post 
Although many of the previous comments could have lead to the problem, I would suggest contacting your integrator. Maybe he could shed some light. Maybe he could entertain us with some posts to give a better idea of what is going on.

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Mike Blakesley
Film God

Posts: 12767
From: Forsyth, Montana
Registered: Jun 99


 - posted 02-14-2012 10:48 PM      Profile for Mike Blakesley   Author's Homepage   Email Mike Blakesley   Send New Private Message       Edit/Delete Post 
Wellllll.... It's got to be the hard drive (or more accurately, a bad FILE on the hard drive) but I'm still not quite sure why it's happening.

I did go in and check the space on the server, just to make sure, and we're only at about 35% so that can't be the issue. All the drives in the RAID are showing OK, too.

I looked over the info sheet again for the drive and it does say to play the file that's not marked for captions (contrary to my post above, sorry), and that's what I had in my playlist -- but when the show is running, the "now playing" note on the monitor still has the CCAP filename showing. So apparently that unmarked file references the CCAP file. Both of the files (CCAP and unmarked) are over 100GB and they're all marked "OV".

I ran all the files through the "quick verify" and it showed no problems on any of them, so then I ran them through the more thorough verify option. This time, it showed the unmarked file as a fail. So, I changed my playlist to just using the CCAP file directly thinking that might solve it.

The CCAP file showed no problems, yet the glitch still remains. At about 3:15 it just goes back to the beginning of the program.

Tonight I tried to stop the playback just before the "bad" part and skip it ahead over the defect and get it back on the screen a few seconds faster. That backfired on me -- I think I cut it too close and the system froze entirely, so I had to reboot to get going again.

So, we have one more night of this nonsense and then it'll be time for something else. I have gone to the low-tech solution of putting an explanatory sign up saying telling people that there will be about a ten-second gap in the movie due to a malfunction and thanking them very much for their understanding. I'll be glad to send this hard drive down the road. (And yes Brad, I will definitely throw it down the stairs a few times. And maybe "freight damage" it with my truck for good measure.)

In 19 months since we went to digital, this is the first "bad" drive we've had. Had to happen sometime I guess.

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Brad Miller
Administrator

Posts: 17775
From: Plano, TX (36.2 miles NW of Rockwall)
Registered: May 99


 - posted 02-14-2012 11:23 PM      Profile for Brad Miller   Author's Homepage   Email Brad Miller       Edit/Delete Post 
Yup, every hard drive will fail, but hard drives that are "handled" in the way CRU drives are will fail MUCH sooner!!!

It's just bad luck. Nothing more than that. That being said if the hard drive is still write-able, they WILL re-use it on another movie!

I'll bet if it isn't already happening it will soon...buying new replacement drives just like the film depots used to have to do with new reels.

At least Deluxe FINALLY dumped all of those non-CRU craptacular drives!!!

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Monte L Fullmer
Film God

Posts: 8367
From: Nampa, Idaho, USA
Registered: Nov 2004


 - posted 02-15-2012 12:18 AM      Profile for Monte L Fullmer   Email Monte L Fullmer   Send New Private Message       Edit/Delete Post 
..and had this happen to me in a TMS server - couldn't do any LS ingesting at all when one of the RAID drives conked out on me and locked out the ingest procedures.

Had to do local server ingests until the drive was replaced and then it took most of the day for it to be assumulated in with the other 8 drives.

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Marco Giustini
Film God

Posts: 2713
From: Reading, UK
Registered: Nov 2007


 - posted 02-15-2012 01:00 PM      Profile for Marco Giustini   Email Marco Giustini   Send New Private Message       Edit/Delete Post 
I'm with Scott here, if you try to ingest a DCP from a bad drive, or a corrupted file, the server will reject it. Each file will be loaded and then analised and the HASH key compared with the good one listed in the CPL. If your feature was corrupted on your server, it is more likely a server issue. Or it could be a "bad" DCP, meaning the mastering is somehow wrong - but the files and the HD are fine.
Unless your server does things differently: I'm familiar with Doremi, Dolby and XDC. But the HASH key in the CPL is there for a reason!

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Mike Blakesley
Film God

Posts: 12767
From: Forsyth, Montana
Registered: Jun 99


 - posted 02-15-2012 04:01 PM      Profile for Mike Blakesley   Author's Homepage   Email Mike Blakesley   Send New Private Message       Edit/Delete Post 
I am reluctant to blame the server. The movie was deleted and then re-ingested, yet the glitch happened in the exact same spot. Also, before I deleted it, I had done my weekly "purge" of older trailers so there was even more space available on the second ingest. Besides, like I said, we have another movie playing and it works perfectly.

Bottom line -- if this weekend's new movie does a similar thing, then I will start making server-related phone calls! [Big Grin]

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Brad Miller
Administrator

Posts: 17775
From: Plano, TX (36.2 miles NW of Rockwall)
Registered: May 99


 - posted 02-15-2012 09:12 PM      Profile for Brad Miller   Author's Homepage   Email Brad Miller       Edit/Delete Post 
I'm with Mike. I don't think it was the server. Sounds to me like a faulty hard drive that read just good enough to pull the file in and validate it, but still produced a corrupted file.

That being said, I've never had that happen before to me.

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Scott Norwood
Film God

Posts: 8146
From: Boston, MA. USA (1774.21 miles northeast of Dallas)
Registered: Jun 99


 - posted 02-15-2012 09:40 PM      Profile for Scott Norwood   Author's Homepage   Email Scott Norwood   Send New Private Message       Edit/Delete Post 
If I read the DCI specification correctly, specifically section 9.4.3.5, it seems that the server is not actually _required_ to detect a corrupt DCP. [Roll Eyes]

Still, there is enough information in the DCP to do this, and to not do it (and allow a corrupt DCP to play without explicitly warning the operator that there may be issues with it) seems like either a bug or a design flaw with the server.

(This assumes that the DCP in Mike's case was actually corrupt, and not just improperly created.)

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