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Author Topic: Dolby harddisk approvement list Steve Guttag We forgot the crackers Gromit!!! Posts: 12814 From: Annapolis, MD Registered: Dec 1999 posted 04-17-2017 09:42 AM                     Just a guess... The DSS200i is a 6TB system so no drives below 2TB would have been qualified for it (they aren't going to take the time/resources to try out smaller drives, just in case someone wants to downgrade). Furthermore, any drive that is obsolete or at the end of its run is likely not to be qualified on a "new" product. The DSS200 could have two different RAID cards so in order to qualify a drive for it, they would have to check on both cards to ensure there were no unexpected issues. Note, they are not saying other drives won't work just that they have not qualified them to work. Once they have available off-the-shelf drive(s) available, there is no point in trying them all out. I hear they are qualifying new drives now for the DSS line (which is good because most of the drives that are approved are no longer made). It is also going to be slim pickings to find 1TB drives going forward (new drives made recently). HGST has a single line of Enterprise grade drives that includes a 1TB. It is part of their Ultrastar 7K2 line. It is the HUS722T1TALA604. There is just a 1TB and 2TB drive in that line and it appears to be there to support legacy systems. From what I can tell, the big change is the 6Gb/s. HGST's standard Enterprise drives are part of the 7K6000 series and start at 2TB. Western Digital's "Gold" line of enterprise grade drives have a pretty wide range from 1TB to 10TB.  |  IP: Logged Mattias Mattsson Film Handler Posts: 90 From: Göteborg, Sweden Registered: May 2007 posted 04-17-2017 07:39 PM                     quote: Steve Guttag The DSS200 could have two different RAID cards so in order to qualify a drive for it, they would have to check on both cards to ensure there were no unexpected issues. Dolby actually uses the installed RAID card to determine which type of server their software is running on (/etc/rc.d/platform_detection.sh), and assumes DSS220 if no hw raid card is found. According to that script and also my own observations on real hardware, the following 3Ware/LSI RAID cards have been used for the DSS-servers DSS100: 9550SXU-4LP DSS200: 9650SE-4LPML DSS200i: 9750-4i I don't know if Dolby does additional testing, but you could also look up the qulified drive list from LSI for the above cards, but hey are unfortunately quite dated at this time..  |  IP: Logged

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