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» Film-Tech Forum ARCHIVE   » Operations   » Digital Cinema Forum   » I have crossed over to the Dark Side...My first D-Cinema install (Page 8)

 
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Author Topic: I have crossed over to the Dark Side...My first D-Cinema install
Jason Raftery
Film Handler

Posts: 72
From: San Diego, CA, USA
Registered: May 2011


 - posted 01-11-2012 01:38 PM      Profile for Jason Raftery   Email Jason Raftery   Send New Private Message       Edit/Delete Post 
quote: Scott Norwood
Out of curiousity, what model of Seagate keeps failing? Are they the consumer-grade Barracudas or the semi-enterprise-grade Constellations?
The 500GB Seagates in a DSS100 we received were from the Barracuda ES2 series. I believe they were model ST3500320NS. Three of the four have died (each at a different time). The original drives supposedly shipped with defective firmware from the factory. Dolby's system software upgrade program automatically updated the drive firmware when we went from system 3 to system 4.

Seagate recently acquired Samsung's disk drive business and Western Digital is in the process of obtaining approval to buy Hitachi's business (though WD recently told the EU they'd divest their 3.5" drive business as a condition of the sale).

As 500GB drives are slowly being phased out by manufacturers, can one simply replace them with 1TB drives on a 1:1 basis as they fail (obviously the extra capacity will be wasted so long as at least one drive in the RAID array is a 500GB model)? Or must all drives in the array be upgraded at once if changing capacity?

If the former, once the last 500GB drive in an array fails and is replaced by a larger drive, will the array automatically be resized to take advantage of the extra space? Or must the entire array be scraped and recreated to make use of the added space?

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Philip Jones
Film Handler

Posts: 90
From: England
Registered: Dec 2011


 - posted 01-11-2012 03:15 PM      Profile for Philip Jones   Email Philip Jones   Send New Private Message       Edit/Delete Post 
What size and make HDDs are in new DSS200s?

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Brad Miller
Administrator

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


 - posted 01-11-2012 04:32 PM      Profile for Brad Miller   Author's Homepage   Email Brad Miller       Edit/Delete Post 
The standard DSS200 drives that Dolby uses are 1TB (creating a 2.7TB raid). They are Hitachi 0A39289.

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Kris Verhanneman
Expert Film Handler

Posts: 182
From: Belgium
Registered: Dec 2009


 - posted 01-11-2012 05:01 PM      Profile for Kris Verhanneman   Email Kris Verhanneman   Send New Private Message       Edit/Delete Post 
quote: Jason Raftery
If the former, once the last 500GB drive in an array fails and is replaced by a larger drive, will the array automatically be resized to take advantage of the extra space? Or must the entire array be scraped and recreated to make use of the added space?
No you will need to rebuild the complete raid (so loose everything) by reinstalling the Dolby.

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Steve Guttag
We forgot the crackers Gromit!!!

Posts: 12814
From: Annapolis, MD
Registered: Dec 1999


 - posted 01-11-2012 05:36 PM      Profile for Steve Guttag   Email Steve Guttag   Send New Private Message       Edit/Delete Post 
Scott...for the record, I've had nothing but happiness with the WD drives I've had...in fact, with each Seagate that has dropped in my personal use, I've replaced it with a WD and life was bliss.

Note, Dolby does not officially support 1TB drives in the DSS100. It all depends on what hardware is inside for the RAID to work with 1TB in a DSS100. That said, I've done two without incident.

-Steve

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Tony Bandiera Jr
Film God

Posts: 3067
From: Moreland Idaho
Registered: Apr 2004


 - posted 01-11-2012 10:28 PM      Profile for Tony Bandiera Jr   Email Tony Bandiera Jr   Send New Private Message       Edit/Delete Post 
quote: Brad Miller
The standard DSS200 drives that Dolby uses are 1TB (creating a 2.7TB raid). They are Hitachi 0A39289.


Yep those are the exact drives in my DSS200. [Smile]

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Joe Elliott
Master Film Handler

Posts: 497
From: Port Orange, Fl USA
Registered: Oct 2006


 - posted 01-12-2012 12:06 AM      Profile for Joe Elliott   Email Joe Elliott   Send New Private Message       Edit/Delete Post 
quote: Steve Guttag
I'm REAL curious as to WHY you "much prefer" the GDC to the Dolby. It is the exact opposite of what we have found from our customers.
Out of all of the servers, I have had the least trouble from the GDC's than the other two. To be fair again however, remember the majority of the Dolby's I deal with are DSS 100's. With the GDC's, all I have had to deal with is drive failures.

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Brad Miller
Administrator

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


 - posted 01-12-2012 01:32 AM      Profile for Brad Miller   Author's Homepage   Email Brad Miller       Edit/Delete Post 
How old are your GDCs and what were the issues you had with the older Dolby DSS100s?

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Steve Guttag
We forgot the crackers Gromit!!!

Posts: 12814
From: Annapolis, MD
Registered: Dec 1999


 - posted 01-12-2012 04:47 AM      Profile for Steve Guttag   Email Steve Guttag   Send New Private Message       Edit/Delete Post 
Joe, specifically...what "trouble" have you had with the DSS100? About all I've had has been the Seagate drives...and unfortunate choice by Dolby (and even GDC).

-Steve

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Joe Elliott
Master Film Handler

Posts: 497
From: Port Orange, Fl USA
Registered: Oct 2006


 - posted 01-12-2012 06:44 AM      Profile for Joe Elliott   Email Joe Elliott   Send New Private Message       Edit/Delete Post 
quote: Brad Miller
How old are your GDCs and what were the issues you had with the older Dolby DSS100s?
All of the GDC's are sa2100's, I service about 140 or so, most are a year and a half old but about 20 are older, maybe 3 to 5 years. The DSS100's I have had problems with have had either connection issues with the dsp100's, or have had problems freezing up. I service about 20 in my area. I have had 2 with the freezing problem, and after cleaning, reseating, replacing all of the hard drives, updating, reinstalling, reinstalling, reinstalling . . . etc, the problem was not fixed, and so Dolby eventually did repair exchanges on them because they were unsure what the problem was. I have about 6 that upon occasion, will not communicate with their Dsp100's. They eventually connect, but they take sometimes 5 to 10 min. I have 2 that read a degraded raid array. At various times one, or all of the drives have been replaced, software has been upgraded and then later reinstalled, but they still read degraded array, and Dolby is uncertain why, as they cannot find anything in the logs. They are working just fine, however. So the decision has come down, that if it works, don't fix it. Have had specific problems with the LMS and communication, especially of late, but I do not believe I am allowed to speak about that, so I will not. I have not signed a NDA, but I would be quoting others who have.

quote: Steve Guttag
About all I've had has been the Seagate drives...and unfortunate choice by Dolby (and even GDC).
Yes, all of the drives I have had to replace are the Seagate drives in both Dolby and GDC, I believe all barracuda drives.

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Steve Guttag
We forgot the crackers Gromit!!!

Posts: 12814
From: Annapolis, MD
Registered: Dec 1999


 - posted 01-12-2012 08:52 PM      Profile for Steve Guttag   Email Steve Guttag   Send New Private Message       Edit/Delete Post 
Thanks for the info! I have not personally had the image freezing problems but it is nice that someone finally quantifies just what have brought about the negative opinion of the product. Image freezes would bother the heck out of me too.

-Steve

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Brad Miller
Administrator

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


 - posted 01-12-2012 09:55 PM      Profile for Brad Miller   Author's Homepage   Email Brad Miller       Edit/Delete Post 
Interesting, the only connection issues I'm aware of that Dolby had was on the original firmware for series 2 projectors. Then again we did the first install of Dolby servers with Christie series 2 projectors, so we got into that early on. Were yours with series 1 or series 2? I would be curious to know what version you were running if you happen to remember.

On your degraded raid problem, I've seen it happen and it was a result of the drives not being fully seated in the cage when the install disc was ran. This is the solution that always works for me:

Physically remove the hard drives and put them into a drive dock connected to your laptop. This one works well, or for only $4 more you can get this one and do 2 at a time. This is your best bargain.

Let Windows connect to the drive dock so it can see the drives.

Open a command prompt and type "diskpart" <enter>

Type "listdisk" <enter>

Type "select disk _" (whatever the disc number you want to wipe is) <enter>

***Do not select your laptop hard drive***

Type "listdisk" <enter>

Verify the drive you really want to wipe has an * beside it.

Type "clean" <enter>

About 2 seconds later the drive will be completely wiped. Do this for all 4 drives, then reinstall into the server and run the Dolby install disc.

Once you have ran the install disc and are rebooting the server, watch to see that all 4 drives are shown in the boot sequence.

I cannot stress this enough, always, always, always type "listdisk" that second time and make damn sure your laptop hard drive doesn't have the * beside it before you type "clean"!

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Sean Weitzel
Jedi Master Film Handler

Posts: 619
From: Vacaville, CA (1790 miles west of Rockwall)
Registered: Dec 1999


 - posted 01-13-2012 03:20 PM      Profile for Sean Weitzel   Email Sean Weitzel   Send New Private Message       Edit/Delete Post 
Diskpart isn't entirely stupid. It won't let you clean the drive you are booted from:

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Brad Miller
Administrator

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


 - posted 01-13-2012 07:37 PM      Profile for Brad Miller   Author's Homepage   Email Brad Miller       Edit/Delete Post 
Good to know. I was told otherwise and didn't want to test the theory.

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Sean Weitzel
Jedi Master Film Handler

Posts: 619
From: Vacaville, CA (1790 miles west of Rockwall)
Registered: Dec 1999


 - posted 01-13-2012 09:28 PM      Profile for Sean Weitzel   Email Sean Weitzel   Send New Private Message       Edit/Delete Post 
It's always better to be safe than sorry. I would still recommend your instructions with the added double check.

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