iSeries I/O adapters and controllers 349
Draft Document for Review October 18, 2004 5486IOA.fm
#2763 PCI RAID Disk Unit Controller
The #2763 PCI RAID Disk Unit Controller is an Ultra2 SCSI disk unit controller
with a 10 MB write-cache that provides RAID-5 protection for internal disk units
and supports internal tape and CD-ROM units.
The #2763 is designed to work as a high-performance controller for disks
protected by system mirroring or disks with no protection. In the RAID-5
configuration, disk unit protection is provided at a lower cost than mirroring and
with greater performance than system checksums.
The #2763 controller supports a maximum of 12 disk units and up to two
removable media devices including a DVD. The #2763 is available on the Model
270, the Model 820, and the #5075 PCI Expansion Tower.
A minimum of four drives of the same capacity is needed for a valid RAID-5
configuration. A maximum of three arrays is allowed, with a maximum of 10
drives allowed per array. All drives in an array must be of the same capacity.
The #2763 PCI RAID Disk Unit Controller is hot pluggable.
When used as a Direct Attached Adapter for Linux, order the #0604 in place of
the #2763.
The #2763 was
withdrawn from marketing on 21 November 2003. The #5703
PCI-X RAID Disk Unit Controller is the recommended replacement.
#2768 PCI Magnetic Media Controller
The #2768 PCI Magnetic Media Controller is an Ultra SCSI HVD controller for
attachment of an external tape device or an external CD-ROM device that has a
single-ended SCSC interface.
The #2768 PCI Magnetic Media Controller
supports one, or a combination, of
these devices:
7207 Model 122 QIC-SLR Tape Bridge Box
Number of units in the array Number of units parity is spread across
32
4 - 7 4
8 - 15 8
16 - 18 16
To Next Page
Loading...
Need help?
General