Kontroler Raid PERC 3/QC 128MB

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PERC 3/QC has four SCSI channels that support 160M and Wide SCSI at data transfer rates up to 160 MB/sec. The SCSI channel supports up to 14 Wide devices or up to seven narrow devices.
The RAID controllers can be installed in a Dell™ PowerEdge™ system with a motherboard that has 5-V, 32- or 64-bit PCI expansion slots.

Specyfikacja:

RAID levels - 0, 1, 5, 10, and 50
SCSI channels - 4
Array interface to host - PCI Rev 2.2
Storage interface - Wide 160M
Cache memory size - 128 MB DIMM
Cache function - Write-back, write-through, adaptive read-ahead, non-read-ahead, read-ahead
Number of logical drives and arrays supported - Up to 40 logical drives and 32 arrays per controller
Maximum logical drive size supported - 2 TB for all RAID levels (0, 1, 5, 10, and 50)
Online capacity expansion - Yes
Hot spares - Yes
Flashable firmware - 2 MB
Hot swap devices supported - Yes
Non-disk devices supported - No
Mixed capacity hard drives - Yes
Number of 16-bit internal connectors - Two
Number of 16-bit external connectors - Four
Cluster support - No
Optional backup battery support for cache memory - Up to 72 hours retention for 64 MB cache memory (less for larger cache memory)



RAID Performance Features:

Host data transfer rate - 533 MB/sec
Drive data transfer rate - 160 MB/sec
Maximum scatter/gathers - 26 elements
Maximum size of I/O requests - 6.4 MB in 64 KB stripes
drive - As many as the drive can accept.
Stripe sizes - 2 KB, 4 KB, 8 KB, 16 KB, 32 KB, 64 KB, or 128 KB
Maximum number of concurrent commands - 255 (Linux® supports only 126 concurrent commands. The 255 command limit is in the firmware and the driver limit is lower.)
Cluster support - Yes


Więcej informacji na stronie producenta: http://support.dell.com/support/edocs/storage/RAID/PERC3sc/en/ug/chap3.htm