Displaying 4 results from an estimated 4 matches for "r900b".
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r900
2009 Nov 17
13
ZFS storage server hardware
...k I want option 3. Additionally, because I might get greedier
in the future and decide to add more drives on each controller I think
option 3 is the best way to go. I can have a motherboard with a lot of
PCIe slots and have one controller card for each expander.
Cases like the Supermicro 846E1-R900B have 24 hot swap bays accessible
via a single (4u) LSI SASX36 SAS expander chip, but I''m worried about
controller death and having the backplane as a single point of failure.
I guess, ideally, I''d like a 4u enclosure with 2x2u SAS expanders. If I
wanted hardware redundancy, I...
2008 May 30
3
XFS install issue
I am attempting to implement XFS on a new system.
System:
Supermicro SC846 TQ-R900B - rack-mountable
SUPERMICRO X7DWN+ - motherboard
3ware 9650SE-24M8 - storage controller
10 Hitachi DeskStar 7K1000 - hard drive - 1 TB
8GB Ram
2 Intel Quad-Core Xeon E5420 / 2.5 GHz processor
Installed Centos 5.1 X86 64 from DVD. System on /dev/sda1
? 250GB ext3 (raid 5). /home will be on /dev/sd...
2010 Jun 21
0
Seriously degraded SAS multipathing performance
...ys can help me achieve full throughput
across both paths.
My System Config:
OpenSolaris snv_134
2 x E5520 2.4 GHz Xeon Quad-Core Processors
48 GB RAM
2 x LSI SAS 9200-8e (eight-port external 6Gb/s SATA and SAS PCIe 2.0 HBA)
1 X Mellanox 40 Gb/s dual port card PCIe 2.0
1 x JBOD: Supermicro SC846E2-R900B (Dual LSI SASX36 3Gb/s Expander
Backplane, 24 Hot Swap drives)
22 x Seagate Constellation ES SAS drives
Performance I''m seeing with Multipathing Enabled (driver: mpt_sas):
With only one of the two paths connected:
1 drive connected: 137 MB/s sustained write, asvc_t: 8 ms
22 drives conne...
2009 Jan 30
35
j4200 drive carriers
apparently if you don''t order a J4200 with drives, you just get filler
sleds that won''t accept a hard drive. (had to look at a parts breakdown
on sunsolve to figure this out -- the docs should simply make this clear.)
it looks like the sled that will accept a drive is part #570-1182.
anyone know how i could order 12 of these?