large filesystem & fileserver architecture issues.
Gerry Creager N5JXS
gerry.creager at tamu.edu
Wed Aug 6 08:07:45 EDT 2003
We just implemented an IDE RAID system for some meteorology data/work.
We're pretty happy with the results so far. Our hardwre complement is:
SuperMicro X5DAE Motherboard
dual Xeon 2.8GHz processors
2 GB Kingston Registered ECC RAM
2 HighPoint RocketRAID 404 4-channel IDE RAID adapters
10 Maxtor 250 GB 7200 RPM disks
1 Maxtor 60 GB drive for system work
1 long multi-drop disk power cable...
SuperMicro case (nomenclature escapes me, however, it has 1 disk bays
and fits the X5DAE MoBo
Cheapest PCI video card I could find (no integrated video on MoBo)
Add-on Intel GBE SC fiber adapter
1. I should have checked for integrated video for simplicity
2. Current HighPoint drivers for RH9 are not RAID yet; use RH7.3 with
ALL the patches
3. Make sure you order the rack mount parts when you order the case; it
only appeared they were included...
4. Questions have been raised about the E-1000 integrated GBE copper
NIC on the Mobo; Doesn't matter: it's gonna be connected to a 100M
switch and GBE will be on fiber like God intended data to be passed (No,
I don't trust most terminations for GBE on copper!)
It's up and working. Burning in for the last 2 weeks with no problems,
it's going to the Texas GigaPoP today where it'll be live on Internet2.
Nicholas Henke wrote:
> On Tue, 2003-08-05 at 11:45, Michael T. Prinkey wrote:
>>On 4 Aug 2003, Nicholas Henke wrote:
>>We have a lot of experience with IDE RAID arrays at client sites. The DOE
>>lab in Morgantown, WV has about 4 TBs of IDE RAID that we built for them.
>>The performance is quite good (840 GBs, 140 MB/sec read, 80 MB/sec write)
>>and the price is hard to beat. The raid array that serves home
>>directories to their clusters and workstations is backed up nightly to a
>>second raid server, similarly to your system. To speed things along we
>>installed an extra gigabit card in the primary and backup servers and
>>connected the two directly. The nightly backup (cp -auf via NFS) of 410
>>GBs take just over an hour using the dedicated gbit link. Rsync would
>>probably be faster. Without the shortcircuit gigabit link, it used to run
>>four or five times longer and seriously impact NFS performance for the
>>rest of the systems on the LAN.
>>Hope this helps.
>>Aeolus Research, Inc.
> Definately does -- can you recommend hardware for the IDE RAID, or list
> what you guys have used ?
Gerry Creager -- gerry.creager at tamu.edu
Network Engineering -- AATLT, Texas A&M University
Cell: 979.229.5301 Office: 979.458.4020 FAX: 979.847.8578
Office: 903A Eller Bldg, TAMU, College Station, TX 77843
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