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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 5)

 
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Author Topic: I have crossed over to the Dark Side...My first D-Cinema install
Brad Miller
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Posts: 17775
From: Plano, TX (36.2 miles NW of Rockwall)
Registered: May 99


 - posted 01-08-2012 12:13 PM      Profile for Brad Miller   Author's Homepage   Email Brad Miller       Edit/Delete Post 
Don't worry Tony. That was Mark's best shot. Since he is going to play that game, here is one from the collection of mine. At least you don't have to worry about having a server where the entire operating system and critical media block information relies on ONE regular sata hard drive with no form of RAID or anything. In fact I can hear that conversation now.

quote:


"What do you mean we can't run the show? This is an important show!"

"Sorry Sir, the server's hard drive failed. It'll be a few days to buy another from the manufacturer that is specific to this serial number machine and have it overnighted in."

"But the server has a RAID in it. Isn't the OS on the RAID, or a flash memory chip or something?"

"No Sir. It was probably done that way to cut all corners possible in the name of profit."

"Well THAT'S a really stupid design!"

"I agree, but you were the one that listened to Mark Gulbrandsen when you ordered it."

"Can't you just grab a drive from a local store and re-install it to save the show?"

"No sir, only Dolby servers can do that."



FACT: ALL hard drives fail.
The typical lifespan is 3 years, although most hard drive manufacturers are changing that to only 1 year.

FACT: Dolby and Doremi do not rely on a single non-RAIDed hard drive for the OS.

FACT: If for whatever reason you wanted to, with the Dolby server you can put an install CD in it and 15 minutes later it is just like a brand new machine! Of course whenever a drive does die, you can simply hot swap it and it will rebuild on its own.

FACT: Both Dolby and Doremi are the cheapest servers out there to purchase, but any IT professional will be able to compare them to Mark's server and be able to point out that shortcuts were not taken in the hardware quality and design.

I'm sure Mark will be back with some more words of wisdom from his ass.

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Tony Bandiera Jr
Film God

Posts: 3067
From: Moreland Idaho
Registered: Apr 2004


 - posted 01-08-2012 12:42 PM      Profile for Tony Bandiera Jr   Email Tony Bandiera Jr   Send New Private Message       Edit/Delete Post 
Lol thanks Brad.

Now a question, in your real world experience with Dolby Servers, with the servers being on 24/7, what failure rate have you seen with the drives?

In the case of my install, they will rarely be running D-Cinema content and even so it won't be grinding out 5 or more shows per day, if that makes any difference.

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Steve Guttag
We forgot the crackers Gromit!!!

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


 - posted 01-08-2012 02:02 PM      Profile for Steve Guttag   Email Steve Guttag   Send New Private Message       Edit/Delete Post 
I normally tell people to expect a RAID drive failure each year for each system. Since the 1TB Hitachi drives came out, they have been going longer. The 500GB Seagates have been my worst drives (in conventional PCs as well as RAIDs).

I think GDC should have added a mirror OS drive...relatively cheap insurance. That would get them their fast boot up (which they do have) and be fully backed up.

-Steve

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Martin McCaffery
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From: Montgomery, AL
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 - posted 01-08-2012 02:13 PM      Profile for Martin McCaffery   Author's Homepage   Email Martin McCaffery   Send New Private Message       Edit/Delete Post 
Will annual, or after x hours, replacement of drives be considered standard maintenance in the near future? They're cheaper than xenon bulbs which get rotated out regularly.

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Brad Miller
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From: Plano, TX (36.2 miles NW of Rockwall)
Registered: May 99


 - posted 01-08-2012 03:00 PM      Profile for Brad Miller   Author's Homepage   Email Brad Miller       Edit/Delete Post 
Tony, with digital cinema just like servers, it is turning the things on and off that seem to do the most damage. Regardless there are a few simple rules to follow on the big 3:

DOLBY - keep a spare drive of the same size handy (and preferably same make/model, but it isn't a requirement) for when one dies. (Their OS is stored on the raid, so there is no other concern.)

DOREMI - keep a spare drive of the same size handy (and make/model as they are pickier about the RAID being matched) for when one dies. It is also recommended you keep one OS flash memory chip in each complex in case one fails. (Although failure of these is rare, it does happen as flash memory isn't perfect.)

GDC - keep a spare drive of the same size handy (like Doremi, same make/model) in case one dies. If you care about uptime, it is also just about mandatory to purchase a spare pre-configured OS drive for each server (as they are all specific to that particular server) to keep on the shelf for when the non-protected OS drive fails.

Steve, I begged GDC at the first of this year to mirror their OS drive, but they aren't interested, despite it being in the end user's best interest.

I'm surprised Mark's ass hasn't posted yet. [Razz]

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Mark Gulbrandsen
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From: Music City
Registered: Jun 99


 - posted 01-08-2012 06:20 PM      Profile for Mark Gulbrandsen   Email Mark Gulbrandsen   Send New Private Message       Edit/Delete Post 
Sorry Brad,

I've been in route to an install site and just arrived...

Actually(and I quote S.Guttag himself) "the DSS-200 can take as long as 8 min to boot". I've seen ~6 min. being the average. Plenty of time to go get a cup of coffee... That's also why you need to have it on a UPS!!

Brad and Steve can spout off all they want to but I was just asked to yank a 1 year old DSS-200 because the theater owner prefered his GDC's way better after using several others... and Brad in all fairness I had a GDC die in Southern Utah this past week. Something with the motherboard, (the same Super Micro MB that Dolby uses). Yes, the server had been installed last July and GDC same day'd a brand new server to replace that one at no cost. Interestingly the same site has a single DSS-100 with a diagnosed by Dolby bad raid card which Dolby is not even sure can be repaired. LAst I checked they don't have any raid cards in stock any more. More than likely that DSS-100 will be making way for another GDC in the very near future and become a parts macine for the few others in this chain... Oh, and I'm still awaiting my first OS drive failure and with 70+ GDC's I have in the field it will no doubt happen but as with all other GDC related issues it will be no big deal and won't even require a KDM to reload the OS. It can literally be back up and running in 10 min.

Now you probalby think I hate Dolby... not at all the case... it's totally my customers preferences speaking for themselves after using both brands. And the GDC actually costs slightly more $$! I could also install Dolby for any customer that prefers it and sleep just fine at night.

Watch for GDC's new IMB which was shown and demoed at Show East and will be available for purchase starting around Cinemacon. It is a stand alone system of it's own requiring literally any kind of external IT type server to feed it's data via PCIE or CAT 6. The hard drive(an SSD) will be integrated into the IMB eliminating completely the need for any local server and considerably lowering the cost to install equipment in a multiplex.

The present GDC servers will probably also see a SSD upgrade some time next year as well. That should shorten it's boot up time to less than 40 seconds and basically make the single drive system failure proof, perhaps even more failure proof than Dolby's 3Ware hardware raid card is. The future of storage lays in solid state, not mechanical stuff.

Mark

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


 - posted 01-08-2012 07:57 PM      Profile for Brad Miller   Author's Homepage   Email Brad Miller       Edit/Delete Post 
Oh Mark, so many things wrong here.

quote:
Actually(and I quote S.Guttag himself) "the DSS-200 can take as long as 8 min to boot". I've seen ~6 min. being the average. Plenty of time to go get a cup of coffee... That's also why you need to have it on a UPS!!
I agree with the 6 minutes average boot time, but anyone who installs servers without a UPS is just nuts so I don't see this as a problem.

quote: Mark Gulbrandsen
and Brad in all fairness I had a GDC die in Southern Utah this past week. Something with the motherboard, (the same Super Micro MB that Dolby uses).
Yet the GDC has a 10/100 nic on that "same" motherboard vs gigabit on the Dolby.

quote: Mark Gulbrandsen
Yes, the server had been installed last July and GDC same day'd a brand new server to replace that one at no cost.
Absolutely. Every company has a dud leave the shop every so often. We can't fault GDC for that, but I've had a Dolby server fail out of the box and Dolby did the same thing, so it really isn't anything all that special to boast about (unless Doremi wouldn't do it, but I would assume that they would).

quote: Mark Gulbrandsen
Interestingly the same site has a single DSS-100 with a diagnosed by Dolby bad raid card which Dolby is not even sure can be repaired.
We need to keep the discussion fair. GDC hasn't been around that long whereas the DSS-100s have. (That being said I was never a big fan of the DSS-100. You know that as you were in the same class that I was.)

quote: Mark Gulbrandsen
Oh, and I'm still awaiting my first OS drive failure and with 70+ GDC's I have in the field it will no doubt happen but as with all other GDC related issues it will be no big deal and won't even require a KDM to reload the OS. It can literally be back up and running in 10 min.
Bullshit. Do you keep spare GDC OS hard drives pre-configured which are specific to each server at all 70 of your sites? No of course you don't. You will have to call it into GDC and have them make you one special. Don't try and bullshit me, I've spoken to the tech guys at GDC and that is the procedure. That is the #1 issue I have with the GDC server. As long as the customers are ok playing that gamble, then I can sleep well at night selling them GDC and be perfectly fine with it.

As far as having a KDM to reload the OS, you imply that Dolby requires it, but that again is more Mark bullshit. Any OS reload is just a CD in the drive away.

quote: Mark Gulbrandsen
Now you probalby think I hate Dolby... not at all the case... it's totally my customers preferences speaking for themselves after using both brands.
I have yet to talk to anyone that has used both and didn't think the GDC interface wasn't a total disaster. Regardless, if that is what a customer wants, that is what they should get. We just installed a few last month and I am sad to say, they did not perform well. There were stuttering issues during playback that according to the GDC techs was caused by the booth being excessively hot and the media block overheating. We sent one of our techs to the site who reported it was no more than 70 degrees in the booth and he felt the entire server during operation and it was cool to the touch all over. No content was loading, pushing or pulling either when playback was stuttering.

Now in fairness, we gave GDC remote access to the machine (the same day we sent one of our techs to check the temperature) and their techs claimed they did nothing, but miraculously and immediately afterwards all of the playback problems stopped and have not re-appeared for the last few weeks since. Coincidence? Or did they fix some bug they didn't want to admit to? I will never believe coincidence (because they claimed they did not alter or do anything to the servers), but whatever, because at the end of the day as long as the servers operate without causing playback issues they can keep their little secret.

quote:
Watch for GDC's new IMB blah, blah, blah
Yeah whatever Mark. Christie has the same thing and others will too.

quote:
The present GDC servers will probably also see a SSD upgrade some time next year as well. That should shorten it's boot up time to less than 40 seconds and basically make the single drive system failure proof,
Blah, blah, blah. There you go on your GDC crusade again. Seriously though, what is your fascination with boot time? What idiots are turning off the server between every show???

Anyway to get to your point, yes a SSD would in theory help the reliability factor, but it would NOT make it failure proof. In the last 3 years I have owned 5 SSD drives. 4 out of those 5, all from different manufacturers mind you, have failed. Outright failed dead! How is that better? Oh yeah, it isn't. Personally I'm done with SSD drives until more time passes and they are able to get it right. If GDC starts putting SSD drives into their machines, that will not impress me at all. They need to setup a RAID 1 on their OS and go to a 4 drive content raid. Then I will consider joining you on some of your crusades for GDC.

To end this on an upnote, I can currently report all of our sites are running perfectly (now that GDC did whatever they did to their servers). So do I hate GDC? Nope. Was the server hardware designed well? Nope. Is their user interface a disaster? In my opinion and everyone outside of you I have spoken to, absolutely. Does the server work? Yup. Is it as reliable as Dolby/Doremi? From a design standpoint, the design dictates that it won't be, but let's keep it fair and say time will tell.

Please keep your comments fair in the future and not misleading.

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Scott Norwood
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From: Boston, MA. USA (1774.21 miles northeast of Dallas)
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 - posted 01-08-2012 09:04 PM      Profile for Scott Norwood   Author's Homepage   Email Scott Norwood   Send New Private Message       Edit/Delete Post 
Statistically, SSDs are less reliable than mechanical disks. At least as of earlier this year. That may change in the future, but I would not personally use them in a situation where reliability is important. Seek time is amazing with SSDs, though.

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Tony Bandiera Jr
Film God

Posts: 3067
From: Moreland Idaho
Registered: Apr 2004


 - posted 01-08-2012 09:16 PM      Profile for Tony Bandiera Jr   Email Tony Bandiera Jr   Send New Private Message       Edit/Delete Post 
LOL great debate guys. [Smile] (Brad/Mark).

Brad, I assume it is safe for me to pull a drive with the server on so I can note make/model to pick up a spare? Since they are hot swappable it would seem to be so.

They have the first class in the room tomorrow, but will be only running alternate content.

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Brad Miller
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From: Plano, TX (36.2 miles NW of Rockwall)
Registered: May 99


 - posted 01-08-2012 10:22 PM      Profile for Brad Miller   Author's Homepage   Email Brad Miller       Edit/Delete Post 
You don't want to do it with the server on or you will initiate an unnecessary raid rebuild. Just power it off, wait 20 seconds for the drives to finish spinning down, then pop one out.

We have some amazing pricing on those drives btw.

quote: Scott Norwood
Statistically, SSDs are less reliable than mechanical disks.
No Scott, you are wrong. Mark says so. That means it must be true! [Razz]

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Tony Bandiera Jr
Film God

Posts: 3067
From: Moreland Idaho
Registered: Apr 2004


 - posted 01-08-2012 11:06 PM      Profile for Tony Bandiera Jr   Email Tony Bandiera Jr   Send New Private Message       Edit/Delete Post 
Man....this next question is really gonna make me sound like a noob....other than yanking the plugs (which I would think is bad) how does one power down a Dolby server? I don't recall seeing an option on the User Interface..but may mean I just wasn't looking in the right place...

My brain was so fried by last Friday I was a zombie during all the final setup....

And I don't have a copy of the DSS 200 manual on my laptop (and the disc is at UCI).

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Mike Blakesley
Film God

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From: Forsyth, Montana
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 - posted 01-08-2012 11:09 PM      Profile for Mike Blakesley   Author's Homepage   Email Mike Blakesley   Send New Private Message       Edit/Delete Post 
Well... I can't speak to the technical side but I will say that I agree with Brad that the GDC interface is nothing special. It works fine, but it's clunky. It doesn't have the look and feel of a system that costs tens of thousands of dollars. It isn't user friendly and it makes you do more steps than you should have to.

For example, why doesn't "shift-click" work to select a range of trailers for deletion? No, you gotta click each one individually. Maybe they will fix this sometime. We can hope.

Disclaimer: I haven't worked with any of the other systems so I can't say if any others are better or not. Just my opinion as an average theatre-owning computer user.

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Brad Miller
Administrator

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


 - posted 01-08-2012 11:52 PM      Profile for Brad Miller   Author's Homepage   Email Brad Miller       Edit/Delete Post 
There is a small hole by the USB ports on the front you can put a paper clip or a ballpoint pen into. Or you could just pull the power cords.

At least the thing is smart enough that when you re-apply power IT ACTUALLY TURNS BACK ON!!! Seriously ---> [Roll Eyes]

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Tony Bandiera Jr
Film God

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From: Moreland Idaho
Registered: Apr 2004


 - posted 01-08-2012 11:59 PM      Profile for Tony Bandiera Jr   Email Tony Bandiera Jr   Send New Private Message       Edit/Delete Post 
Excellent, thanks Brad!! [thumbsup]

LOL yeah earlier in the install when I was moving some things around I actually pulled the plugs without thinking and had one of those oh shit moments..like I said, I was a zombie most of the week anyways, and yep it started right up again for me when I plugged it back in.

My one gripe with that DSS 200 is that those fans in it are LOUD!!

Between it and the projector the booth is almost as noisy as it was when running the 35mm's during a changeover. Luckily it is inaudible in the auditorium.

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


 - posted 01-09-2012 12:07 AM      Profile for Brad Miller   Author's Homepage   Email Brad Miller       Edit/Delete Post 
Yup, welcome to digital cinema. I'll have to actually measure how loud each of the server's fans are someday. I'm not sure which is the loudest/quietest server.

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