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Operating Systems Solaris One StorageTek 6140 vs Two (2) 2540 's? Post 302197482 by lowbyte on Wednesday 21st of May 2008 04:25:02 AM
Old 05-21-2008
Hey all,

another point for the discussion is how many controllers in the storage you plan.
Both 2540 and 6140 can be ordered with one or two controllers, if you use two
controllers in the 2540 you may be faster than a 6140 with one controller. Otherwise
the 6140 will be faster. The internal design of the boxes differs a little bit, cause the
2540 based on SAS-Disks, there is no second line to the disk backplane, so the
second controller is only for failover, multipathing will not speed up the box.
The 6140 has two pathes to the disk backplane, so every controller has its own
path, this will increase the speed by multipathing.

A 2540 with a 2501 expansion tray will not double the performance, the IOPs and
MB thrugh is limited by the controller.
Its a very good idea, get the boxes via try and buy and test yourself.

Happy testing
lowbyte
 

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JMIDE(4)						   BSD Kernel Interfaces Manual 						  JMIDE(4)

NAME
jmide -- JMicron Technology JMB36x PCIe to SATA II/PATA controller driver SYNOPSIS
jmide* at pci? dev ? function ? flags 0x0000 ahcisata* at jmide? DESCRIPTION
The jmide driver supports the JMicron Technology JMB36x IDE controllers. These PCI-e controllers exist in different flavors (1 or 2 PATA Ultra/133 ports and/or 1 or 2 SATA-II ports), and are highly flexible. The SATA ports can be attached to the integrated AHCI controller or attached to the PCI IDE channels in PATA emulation, in either single-drive emulation on each PCI IDE channels, or in master/slave emulation on one of the PCI IDE channels. When enabled, the AHCI controller can either be on the PCI function 0 or function 2. The PCI IDE controller can also be on either PCI func- tion, and can share the PCI function with AHCI. The jmide driver supports both the AHCI controller and PCI IDE controller in various config- urations. SEE ALSO
ahcisata(4), ata(4), atapi(4), intro(4), pci(4), pciide(4), wd(4), wdc(4) AUTHORS
The jmide driver was written by Manuel Bouyer. BSD
July 2, 2007 BSD
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