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Sager 9860 SATA RAID Questions

post #1 of 8
Thread Starter 
I'm very close to placing my order for a 9860 with 2 80 Gig SATA drives in a RAID 0 configuration. To support my gaming fun, this notebook needs to double as a video editing workstation using AVID Xpress Pro software and Mojo, an external device that connects via the firewire port. Mojo allows for input/output of uncompressed video.

My problems:

Problem 1) I have been informed that setting up with a single RAID 0 array as my boot drive and video storage might give me poor performance for video editing. The consensus being that the constant reading and writing of small bits of data to the boot drive works against the need to read & write large continuous video files.

Could the improved bus speed and architecture of this notebook alleviate any bottlekneck concerns?

If I partition the RAID array into two and boot off of one partition and use the other for media, would this potential problem be solved?

Could I add an external firewire drive via a pc card to serve as a boot drive? (reason for not using internal firewire port- see problem 2).

Could the 9860 be retrofitted with an third internal drive like the 8890?

I'd hate to lose internal SATA RAID capabilities for uncompressed video (and soon HD) stream throughputs. I could sacrifice RAID for two non-striped drives- one boot and one media- but I would lose storage space and uncompressed video capabilities.


Problem 2) The Mojo device connected to the internal firewire interface doesn't like to share the PCI bus segment with any other devices, like RAID controllers. I've read that the PCI bus can become saturated - thus causing glitches with Mojo.

Does the 9860 have multiple PCI bus segments?

Does the internal firewire port share the PCI bus segment with any other devices? The firewire port of the Sager 8890 did share the same bus segment with its RAID controller.

If the PROMISE raid controller occupies the PCI bus segment, could I use the onboard Intel Raid controller (which has no conflicts with the PCI bus)?

I know it's alot of questions but any help would be appreciated.
post #2 of 8
well, i'm not basing this on my 9860 experiances, but on my desktop RAID with the same controllers, having the boot and edit partitions the same doesn't really effect anything negitively. Sure you'll get bottle-neck problems with it if you're running ATA100 drives, but thats an IDEE problem. Nowdays, with SATA (to my experiance) I don't notice a difference partitioning or not...

my $0.02
post #3 of 8
Problem 1) I dont think this is a serious problem. I think the overhead now is good enough to work with video no problem. We have a few workstations here with the same setup, no problems apart from when we do crazy post work with lots and lots of streams.

My opinion, set up a stripe and it will work fine.

I have had problems trying to use two seperate firewire devices, one internal one external on two different laptops. (not sager, and not very highend).

t
post #4 of 8
really sorry for this supernoob question and hijacking the original posters thread.. i ll order my 9860 on friday with a single 7600 rpm Ultra Ata 60gig hard drive. For me which option is the best? raid 0?1?
the more definitions i read of this raid stuff, the more confused i get
post #5 of 8
With a single drive, I don't think that any RAID is really an option.
post #6 of 8
With a single drive one can actually install raid and then when you get the 2nd drive implement it.

If you do this, there will be a small performance penality until the raid is actually implemented.

Oh.. the wonders of raid.
post #7 of 8
stemming off of that question...and i think this was answered in another thread...
but if you already are working off of 1 drive, and it's not set for raid...can i now switch to raid, and then install my 2nd drive?
i'm leaning toward the answer being no....
post #8 of 8
SATA Raid-0 is still going to be much faster for video recording/editing than even the fastest stand-alone drive. I recently upgraded from an 8790 with an 80GB 5400rpm system drive and a dedicated 60GB 7200rpm video editing drive to my new 9860 with 2x80GB SATA RAID-0 configuration. The old 60GB 7200RPM drive scored about 32-33MB/s at best in Sisoft Sandra's harddrive benchmark whereas my 9860 scores 53MB/s!!! (and that's with over 40GB of programs already installed). Ideally you'd still logically partition the RAID volume in Windows so that the severe fragmentation caused by the video files is restricted to one portion of the disk.
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