Compaq AA-RHGWC-TE manual 6Hardware Requirements and Restrictions

____________________ Notes ____________________

The Model 4124R disk enclosure is a single-bus enclosure that has slots for 14 drives, but only 12 drives are supported at the present time.

The maximum number of drives behind an HSG60 (single or dual-redundant pair) using two single-bus Model 4214R disk enclosures is 24.

The maximum number of drives behind an HSG60 (single or dual-redundant pair) using one dual-bus Model 4254 disk enclosures is 14.

The Model 4214R and Model 4254 disk enclosures support only the new Compaq hot-pluggable wide-UltraSCSI low voltage differential (LVD) disk drives.

•The StorageWorks Modular Array 8000 (MA8000) and Enterprise Modular Array 12000 (EMA12000) are also built with the new StorageWorks packaging, which consists of:

–A Compaq StorageWorks enclosure Model 2200, which houses dual-redundant HSG80 controllers.

–The 14-bay drive shelves (Compaq StorageWorks enclosure Model 4200).

The Model 2200 enclosure with HSG80 controllers support six SCSI buses which, may be:

–Six drive shelves (Model 4214R) with up to 12 disk drives each. The drive shelves use single-bus mode (one SCSI bus per drive shelf).

–Three drive shelves (Model 4254) with up to 14 disk drives per drive shelf. The Model 4254 drive shelf uses dual-bus mode (two SCSI buses, each with 7 disk drives).

____________________ Notes ____________________

The Model 4124R disk enclosure is a single-bus enclosure that has slots for 14 drives, but only 12 drives are supported at the present time.

The maximum number of drives behind an HSG80 (single or dual-redundant pair) using six single-bus Model 4214R disk enclosures is 72.

2–6Hardware Requirements and Restrictions