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In lugnet.admin.general, Matthew Miller wrote:
> You'll notice that we have almost half a terabyte of storage. This is hard
> to avoid with today's hard drive prices, and is actually a good thing.
I hope that you are planning to use this extra storage for mirroring (I forget
the numbers... RAID-1 ?). Mirroring will reduce your critical path failure from
a HD, but will (remember statistics) halve the MTBF. With one drive at 50k hours
MTBF, two drives would be 25k hours. So in the end you really end up with 120GB
per boxen, which should be plenty.
GEEK ON
On traditional SCSI vs ATA, mirroring works much better on SCSI because SCSI
allows the RAID driver to issue seek commands to the multiple drives (detached
without tieing up the channel) whereas traditional ATA would preclude that
(required seperate controllers per drive). SATA may have addressed that, but I'm
not sure.
GEEK OFF
Ray
fut to .offtopic.geek
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Message has 1 Reply:
 | | Re: New LUGNET server hardware details
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| (...) Yes, there's going to be basically insane amounts of redundancy -- not just live mirroring, but staged images so that any corrupted data isn't instantly propagated to all the backups. (...) Oh, what, the above part wasn't geeky? :) (...) With (...) (20 years ago, 1-Mar-04, to lugnet.off-topic.geek)
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Message is in Reply To:
| | New LUGNET server hardware details
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| So, we've purchased our cool new servers, from Cambridge, MA vendor "PCs for Everyone". Todd and I and several other friends have gotten systems from them before, and have been extremely pleased -- they know their stuff, including Linux, which is (...) (20 years ago, 28-Feb-04, to lugnet.admin.general, lugnet.admin.finance, lugnet.general, lugnet.lego.direct, lugnet.robotics, lugnet.trains, lugnet.technic, lugnet.space, lugnet.castle, lugnet.org, lugnet.announce) !!
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