Release Note для Spectra Logic spectra t120
Library Components
December 2008
Spectra T950 Library
41
Drives
The library’s drives are installed in modular drive bay assemblies (DBAs).
Each DBA has four drive bays and can accommodate up to four full-height
tape drives or four RXT drives. Drives are hot-swappable to provide
uninterrupted operation.
Each DBA has four drive bays and can accommodate up to four full-height
tape drives or four RXT drives. Drives are hot-swappable to provide
uninterrupted operation.
Each drive is mounted in a drive sled which provides the electrical and
logical connections to the library. The drive sled includes intelligence
which assigns a serial number to the drive based on its location in the
library. This location-based serial number remains constant even if the
physical drive is replaced by a new drive. The new drive simply retains the
designated serial number, so drive replacement is completely transparent
to the backup software.
logical connections to the library. The drive sled includes intelligence
which assigns a serial number to the drive based on its location in the
library. This location-based serial number remains constant even if the
physical drive is replaced by a new drive. The new drive simply retains the
designated serial number, so drive replacement is completely transparent
to the backup software.
In addition to the electrical connections for the drive, the drive sled
includes a handle to simplify sliding the drive into or out of a drive bay
and a lock to prevent the drive from being accidentally pulled out of the
library.
includes a handle to simplify sliding the drive into or out of a drive bay
and a lock to prevent the drive from being accidentally pulled out of the
library.
Depending on the type of drive, the drive sled includes the following
connectors:
Ultra-3 SCSI “LVD” 68-pin Micro D female connector (see
connectors:
Ultra-3 SCSI “LVD” 68-pin Micro D female connector (see
) –
Used on SCSI drives with or without a QIP. For QIP-attached drives, a
SCSI terminator (shown in
SCSI terminator (shown in
) is installed on the connector. When
using direct-attach SCSI tape drives, either a terminator or an LVD SCSI
cable is installed on the connector.
cable is installed on the connector.
) – Used to
connect direct-attach Fibre Channel tape drives to a Fibre Channel
network. See “Chapter 2 – Architecture Overview” in the Spectra T950
Library User Guide. for information about using direct-attach Fibre
Channel tape drives.
network. See “Chapter 2 – Architecture Overview” in the Spectra T950
Library User Guide. for information about using direct-attach Fibre
Channel tape drives.
Figure 5 The SCSI drive sled.
Figure 6 The Fibre Channel drive sled.
Handle
Lock
release
SCSI terminator
Handle
Fibre Channel
connectors (2)
Lock
release