Subject:
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Re: New LUGNET server hardware details
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Newsgroups:
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lugnet.off-topic.geek
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Date:
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Mon, 1 Mar 2004 06:50:43 GMT
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Viewed:
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1271 times
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In lugnet.off-topic.geek, Todd Lehman wrote:
> (Writes to disk
> are far less frequent on lugnet.com than reads from disk are, except for logs,
> which may go on the secondary disk.) Initially we'll be running ext3 but are
> looking at ReiserFS v3 and v4 (the latter of which has wandering logs to greatly
> reduce comitted write latency).
Don't forget to turn off atime updates ('noatime' option in FreeBSD fstab) on
all filesystems that don't need it (everything but var usually). This will
prevent all those reads from inadvertantly creating filesystems writes.
Brickshelf too is currently running on ATA disks I'm sorry to say. We will be
going back to SCSI as soon as our budget allows. Frequently accessed files are
cached but try doing a "random gallery" sometime. Turning off atime updates
helped alot but concurrent access is extremely poor with ATA. We will be
updating to SATA now that FreeBSD 5.2.1 seems to support it successfully,
but I doubt that will significantly help concurrent reads (brickshelf typically
serves about 50 URL's per second so even a small percentage of uncached reads
will slow things down alot.
KL
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Message has 1 Reply:
 | | Re: New LUGNET server hardware details
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| (...) Yeah, we're going to examine all of the data and see which should be mounted with which special options. Some stuff will be mounted 'sync' to reduce the chance of data loss in the event of power failure or system crash, neither of which should (...) (20 years ago, 1-Mar-04, to lugnet.off-topic.geek)
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Message is in Reply To:
| | Re: New LUGNET server hardware details
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| (...) Matthew could answer this better than I, but my opinion is that the money is put to better use in ECC memory, and gobs of it. We're starting of with 1GB of RAM, upgradeable to 8GB. Since the OS automatically allocates unused RAM toward (...) (20 years ago, 29-Feb-04, to lugnet.off-topic.geek)
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