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____________________ 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.
2–6 Hardware Requirements and Restrictions