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Author Topic: Best Server?
Steve Guttag
We forgot the crackers Gromit!!!

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


 - posted 07-25-2012 05:53 AM      Profile for Steve Guttag   Email Steve Guttag   Send New Private Message       Edit/Delete Post 
KDMs are stored in the CAt 862, I'm pretty sure and hence they didn't disappear. If you upgraded the Cat 862 via the "Software Update" program and checked the "reinstall all components" then you would likely have lost your KDMs.

As to the serial cues...an "upgrade" disc will not destroy your serial cues...and install disc will since it completely wipes your drives...and in your case you installed new drives.

My guess is you have a DSL100 (or are in TMS mode via "mini-plex" in a 3-screen or less). If so...that is where your cues were stored. A nice feature of the DSL100 is that it also keeps a database of the servers attached to it so things like cues are restored pretty quickly. Of course, that makes me more frustrated since there is clearly a way to clone such things and handle them via Ethernet...the DSL100 does!

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Antti Nayha
Master Film Handler

Posts: 268
From: Helsinki, Finland
Registered: Oct 2008


 - posted 07-25-2012 06:47 AM      Profile for Antti Nayha   Email Antti Nayha   Send New Private Message       Edit/Delete Post 
Yeah, I figured that the Cat. 862 must have some sort of flash memory for storing temporary files such as KDM's then.

This was a single-screen venue with just a single DSS200 paired with a Barco Series 2 projector. The cues that disappeared weren't my serial cues, but the default projector Ethernet commands such as "Lamp on/off", "Dowser open/close" and all the macros for changing formats. I've always understood that those are presets in the DSS200, put in place by the initial config script according to which projector brand you choose (Fig. 3-41 in the Dolby installation manual).

Apparently something went wrong the first time, even though I did choose Barco. Running the config script again didn't help, but as I mentioned, the problem was miraculously fixed by running the 4.3.5.13 upgrade for a second time.

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Steve Guttag
We forgot the crackers Gromit!!!

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


 - posted 07-25-2012 09:57 PM      Profile for Steve Guttag   Email Steve Guttag   Send New Private Message       Edit/Delete Post 
Oh...if it wasn't the serial cues then yes...the DSS200 will poll the devices attached to it and it will get them from the device itself.

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Marco Giustini
Film God

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


 - posted 07-27-2012 02:19 PM      Profile for Marco Giustini   Email Marco Giustini   Send New Private Message       Edit/Delete Post 
Brad, are you sure that Dolby is the only one with hardware RAID? The fact that doremi use the SATA ports on the motherboard does not mean that the RAID is software. The RAID controller should be buried on the motherboard, but it's a proper RAID controller, I guess from Intel.
A software RAID is managed by the OS since the HD controller does not support a RAID at all.

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Brad Miller
Administrator

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


 - posted 07-27-2012 08:43 PM      Profile for Brad Miller   Author's Homepage   Email Brad Miller       Edit/Delete Post 
Yup, software raid.

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Marco Giustini
Film God

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


 - posted 07-28-2012 04:58 AM      Profile for Marco Giustini   Email Marco Giustini   Send New Private Message       Edit/Delete Post 
now I'm thinking about it, you do no need to setup your RAID though the BIOS, while you have to if you're using a Dolby.
I believe that the Supermicro MB has a RAID chip on it, I wonder why they're not using it.

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Olivier Lemaire
Expert Film Handler

Posts: 118
From: Paris, Ile de France, France
Registered: Jan 2010


 - posted 07-28-2012 06:21 AM      Profile for Olivier Lemaire   Author's Homepage   Email Olivier Lemaire   Send New Private Message       Edit/Delete Post 
Most "RAID on chip" on low cost mother board is just crappy most of the case, and can't assume RAID-5 or 6.

As RAID-5 via software don't cost a penny... I think manufacturers rely on using software RAID-5 for that : let's go cheaper and sufficient for a player.

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Marco Giustini
Film God

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


 - posted 07-28-2012 09:58 AM      Profile for Marco Giustini   Email Marco Giustini   Send New Private Message       Edit/Delete Post 
low cost motherboard? I would hope the Server grade Supermicro wouldn't be "low cost"! My Sandy bridge Intel MB supports RAID5 in fact. Anyway, considering the cost of a cinema server, I would not expect anything "low cost" inside.
That said, I have experienced Dolby servers where a dodgy drive was not taken automatically out of the RAID causing constant playback issues on the screen.

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Brad Miller
Administrator

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


 - posted 07-28-2012 12:59 PM      Profile for Brad Miller   Author's Homepage   Email Brad Miller       Edit/Delete Post 
It is purely a cost-cutting choice to go with a software raid. Plus the fewer the drives in a raid, the harder each one has to work as well to achieve the same output. We used to have problems with Doremi and GDC playing back if we were ingesting at the same time. Moving from 3 to 4 drives in a Doremi raid pretty much eliminated that issue. GDC doesn't have the option, you're stuck with 3. It has never been an issue with Dolby (4 drive and hardware-based raid). You can pull, push and playback at the same time...and its all faster than the competing servers too.

Marco, a dodgy drive will cause problems with either type of raid. I've seen it on both.

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Olivier Lemaire
Expert Film Handler

Posts: 118
From: Paris, Ile de France, France
Registered: Jan 2010


 - posted 07-29-2012 01:56 AM      Profile for Olivier Lemaire   Author's Homepage   Email Olivier Lemaire   Send New Private Message       Edit/Delete Post 
Marco: open a server (yes, a Dolby too), have a look on its mother board and other components. You'll end up smiling [Smile]

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Marco Giustini
Film God

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


 - posted 07-29-2012 04:28 AM      Profile for Marco Giustini   Email Marco Giustini   Send New Private Message       Edit/Delete Post 
You mean I'd find the same Intel "value" SSD drives in a Dolby too? And the same yellow SATA cables that cause MB/HDD DMA communication errors? And what's that 3Ware card that Doremi does not have? And why Dolby waste space with 4 HDDs?

I like Doremi, but I feel I'm with Brad here! [Smile]

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Olivier Lemaire
Expert Film Handler

Posts: 118
From: Paris, Ile de France, France
Registered: Jan 2010


 - posted 07-29-2012 05:01 AM      Profile for Olivier Lemaire   Author's Homepage   Email Olivier Lemaire   Send New Private Message       Edit/Delete Post 
I mean you will find in any server the same low cost equipments, more or less. Nothing more, nothing less.

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Marco Giustini
Film God

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


 - posted 07-29-2012 09:55 AM      Profile for Marco Giustini   Email Marco Giustini   Send New Private Message       Edit/Delete Post 
I think motherboards are the same Supermicro but as I said I am not sure the SSD that used to be in a Dolby was an "Intel Value" and as Brad is pointing out Dolby has a 3Ware RAID card inside.

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Richard Orsak
Film Handler

Posts: 45
From: Hallettsville, TX USA
Registered: Sep 2007


 - posted 08-01-2012 01:51 AM      Profile for Richard Orsak   Email Richard Orsak   Send New Private Message       Edit/Delete Post 
Did I miss it, or was QUBE not mentioned. Several of those were going in down around me I believe, so I was curious to comments on its features...

I was told they were used in many Studio Screening Rooms, and Large Venues because of their Speed and Accurate Color?

I'm just throwing this out there because I am a single screen, and am trying to get all this in line right now and get it going...thanks!!!

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Marco Giustini
Film God

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


 - posted 08-01-2012 05:19 PM      Profile for Marco Giustini   Email Marco Giustini   Send New Private Message       Edit/Delete Post 
Do servers show differences in colours reproduction?

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