my profile | my password | search | faq & rules | forum home

» Film-Tech Forum ARCHIVE   » Operations   » Digital Cinema Forum   » Dolby DSS220 There are picture pauses during multiple screenings

Author Topic: Dolby DSS220 There are picture pauses during multiple screenings Tacky Ting Film Handler Posts: 18 From: Hong Kong / China Registered: Jan 2015 posted 06-30-2018 01:58 AM                        There are picture pauses during multiple screenings DSS220 Version is 4.9.0.96 Barco DP-4K 23B Version 2.5.57 2018-06-30 09:45:41,122 ERROR ImbProxy.UslVideoStream - Session TID (0x74effb90) Q, PIX Callback Performance Test, Measured system latency (53704) ms Line 241384: 2018-06-30 09:51:06,399 INFO [USLControlPoint] tiprojector.TIProjectorStateMachine - Received time update greater than 10 seconds from last update. Status code = IN_PROGRESS Hard Disk SMART is healthy Have you ever had this problem?  |  IP: Logged Steve Guttag We forgot the crackers Gromit!!! Posts: 12814 From: Annapolis, MD Registered: Dec 1999 posted 06-30-2018 06:35 AM                     Nope...but when I hear of freeze frames I look for buffer underflows. Underflows are generally when the server (RAID system) can't keep up with the demands of the mediablock. When the mediablock runs out of bits, the image freezes. Look closer at the RAID logs. Do ANY of the drives have reallocated sectors? Check for ATA errors (note, both of these are shown in the Dolby Log Analyzer. Another thing to look at are the read speeds in the SMART logs to see if one drive is dramatically different than the rest. 9 times out of 10 (probably greater)...when show freezes occur, there is a drive or drives responsible.  |  IP: Logged Tacky Ting Film Handler Posts: 18 From: Hong Kong / China Registered: Jan 2015 posted 06-30-2018 08:28 AM                        http://loganalyzer.dolbycustomer.com/index.php/reports/analyze/97606/bd1b3bcff9f93b08abf634bf40b918a4 Raid & Hard disk is healthy  |  IP: Logged Stephan Shelley Jedi Master Film Handler Posts: 854 From: castro valley, CA, usa Registered: Nov 2014 posted 06-30-2018 01:26 PM                     You defiantly have video underflows. I also see media block disconnects but not at the time the video underflows. When the playback pauses look at the disk activity lights. Is one staying on for an unusually long time? If so that is your problem. You might want to replace the media block data cable. As you are using cat 745 have you exchanged it for a battery upgrade? The original coin batteries die after about 3 years.  |  IP: Logged Alexandre Pereira Expert Film Handler Posts: 126 From: Toronto, Ontario, Canada Registered: Jan 2016 posted 06-30-2018 01:29 PM                        I had exactly the same thing happen with my DSS200 - in my case two drives were starting to fail or at least had too many bad sectors causing pauses in the show. The drives were replaced and the raid rebuilt. It can even be done without shutting down the server if you know which drive is bad. Try running a show from the CRU - if it runs fine it is an issue with the raid drives.  |  IP: Logged Steve Guttag We forgot the crackers Gromit!!! Posts: 12814 From: Annapolis, MD Registered: Dec 1999 posted 06-30-2018 02:18 PM                     The DSS220, with the software RAID, doesn't give as much information as the 3WARE hardware RAID. Yes, no ATA errors or Reallocated sectors are showing, at this time. I did see some of the Temperatures of the drives seeming getting hot (over 40C). The buffer underflows are reported. When you have buffer underflows, 9 times out of 10, it is the hard drives/RAID system that is the cause of it. The other 10% is the Ethernet cable/connectors that link the server to the IMB. The Cable is the cheap thing to try and cleaning the server plus having better cooling would be good for the drives. Failing that, I'd start a plan to change out the Drives...either 1 at a time to retain the content or wholesale BUT you MUST have a properly formatted/loaded Install THUMB DRIVE before doing a complete RAID change. The advantage of running the "install" is that it will also wipe anything bad that has crept into the system over the years.  |  IP: Logged Tacky Ting Film Handler Posts: 18 From: Hong Kong / China Registered: Jan 2015 posted 06-30-2018 09:09 PM                        40C is not at work late at night. Normal work it is at 34C I can reinstall System, but can't find the reason. It has an opportunity to happen. IMB Cable & battery Has been replaced What does this log mean? When is it normal? USLControlPoint] tiprojector.TIProjectorStateMachine - Received time update greater than 10 seconds from last update. Status code = IN_PROGRESS  |  IP: Logged

All times are Central (GMT -6:00)

Printer-friendly view of this topic

Hop To: Select a Forum: Category: Operations -------------------- Digital Cinema Forum Film Handlers' Forum Large Format Forum Ground Level Feature Info, Trailer Attachments & REAL Credit Offsets Category: Community -------------------- Film-Yak Film Handlers' Movie Reviews The Afterlife Bob Maar's Joke-A-Thon Category: Classified -------------------- Equipment and Supplies Wanted/For Sale Help Wanted/Seeking Employment Category: System -------------------- Software Beta Testing Forum

The Film-Tech Forums are designed for various members related to the cinema industry to express their opinions, viewpoints and testimonials on various products, services and events based upon speculation, personal knowledge and factual information through use, therefore all views represented here allow no liability upon the publishers of this web site and the owners of said views assume no liability for any ill will resulting from these postings. The posts made here are for educational as well as entertainment purposes and as such anyone viewing this portion of the website must accept these views as statements of the author of that opinion and agrees to release the authors from any and all liability.