IBM iSeries AS400 IBM Power Systems and Software  Loading... Please wait...
  • My Account 
Call 770-772-0200

Currency Displayed in

Shop for Equipment

IBM 2782 PCI-X RAID Disk Unit Ctlr

Hover over image to zoom

  • Image 1
0
$150.00
Condition:
Refurbished

 Product Description

IBM 2782 PCI-X RAID Disk Unit Ctlr

  • SCSI RAID Controller

IBM 2782 is a PCI-X SCSI controller with a 40MB cache that provides RAID-5 protection for internal disks and also supports internal tape units, CD-ROM and DVD devices. #2782 has two SCSI buses that support up to 12 disk units. Hardware data compression is not supported. In addition to providing RAID-5 protection for disks, #2782 also works 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 less cost than mirroring. A minimum of three disk units of the same capacity are needed for a valid RAID-5 configuration. A maximum of four arrays are allowed per controller, with a maximum of 12 disk units allowed per array. All disk units in an array must be of the same capacity. Parity is spread across either two, four, or eight disk units in an array. If an array of three disk units is started, parity is spread across two disk units. If an array of four to seven disk units is started, parity is spread across four disk units. If an array of eight to twelve disk units is started, parity is spread across eight disk units. The number of arrays and size of each array can be influenced by specifying an optimization of either balance, performance, or capacity in Operations Navigator when starting arrays. An optimization of balance is the default when starting arrays from the green screens. If disk units are included into an existing array, parity may be spread across less than the preferred number of disk units. In this case the RAID function must be stopped and started to redistribute the parity. #2782 controls up to two removable media devices (internal tape, CD-ROM, or DVD)

 Find Similar Products by Category

 Product Reviews

This product hasn't received any reviews yet. Be the first to review this product!

You Recently Viewed...

 

newsletter


cc
Data Tech Computer Services, Inc.
5910 Gateway Drive
Alpharetta GA, 30004
770-772-0200

Copyright 2022 Data Tech Computer Services, Inc.. All Rights Reserved.

Click the button below to add the IBM 2782 PCI-X RAID Disk Unit Ctlr to your wish list.