Product ReviewsSupermicro 4U RM Chassis Black 24 SAS Expander 900W Rps
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With 3 User Reviews
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 Rating: Review Date: 07/20/11  |
Cons: Loud stock fansHeavy
Pros: Convenient drive accessSAS-1 |
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Rating: Review Date: 05/10/09 |
Cons: Loud fans, but like most server cases
Pros: Lots of disks (24) in 4RUOnly one cable needed to SAS HBA Comment:
I checked out Matthew_E's setup and decided to copy it. I put in a Supermicro C2SBX motherboard, LSI SAS3081E-R HBA, a bunch of SATA disks and was up and running with FreeNAS. |
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Rating: Review Date: 12/09/08 |
Cons: for home use, quite loud psu fans. Can be heard through walls. (main reason for 4 stars)Case fans have short leads.MB power connector is also tight. Extra mount plate to add non-hotswap disks inside not included.
Pros: disk densityPSU/rales includedsata disks can be used.expander worked out of the box with Linuxcan chain these together for more disks.grate cooling, everything stays cool, even in warm environments. Comment:
SATA disks supported by SAS expanders (via STP, part of SAS) but you need a SAS HBAUnder linux with LSI 1068E controller each disk is mapped directly to a /dev/sd devicecase fans are also quite loud, if not controlled by the MBfault lights do not work out of the box with linux software raid.product page:http://supermicro.com/products/chassis/4U/846/SC846E1-R900.cfm |
Heavy duty and well constructed. This variant has a SAS-1 backplane which can handle 300MB/S through the 8087 connector on the backplane.In my testing with an Adaptec 1045 I was able to achieve roughly the advertised throughput. So Disk 1 -> Disk 2, and Disk 3 -> Disk 4 all simultaneously. Which is 2 copies within the chassis, or 4 reads/writes to drives outside the expander.The expander is a LSI chip (LSISASx36).If you don't purchase a Supermicro motherboard you will want a separate fan controller to control the 47dB San Ace fans.If you swap out the fans you will still require a certain amount of air flow and static pressure to cool the drives. I swapped out mine for Sunon fans and changed the direction to blow out the front. Western Digital blacks ran too hot in my application so they were swapped for WD Greens.Pay attention to the Supermicro website for extra parts you will likely need, such as an internal drive bay holder, or a power control board, a SFF-8087 to SFF-8088 back plate adapter etc.This chassis has been surpassed by the 846E16 (SAS-2).