Compaq ProLiant 6000 Compaq DLT Tape Array II: High-Performance Backup of Ente - Page 10

Rives In, Elation To, Ovell, Ntranet, Hr Backup

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ECG075.0997 (cont.) DLT Tape Array II ... TEST 2 TAPE DRIVES IN RELATION TO SCSI CARDS  NOVELL INTRANETWARE  151 GB/HR BACKUP Novell IntranetWare 4.11 Cheyenne JETserve 4.0 Plus Image 8 GB 4:1 RAIT-0 ProLiant 6000, three Pentium Pro 200 processors, 512 K cache, 384 MB RAM 224-GB array (four SMART-2/P Array Controllers with fifty-six 4-GB drives) 35/70 GB DLT drive(s) Wide-Ultra SCSI-3 cards (All Compaq off-the-shelf products) To observe the performance of various numbers of tape drives in relation to various numbers of SCSI cards under Novell IntranetWare 4.11 on a very high-performance backup server configuration. In a typical DLT Tape Array II solution, two SCSI cards driving four 35/70 GB DLT drives offer a reasonable backup speed (121 GB/hr). A configuration of four SCSI cards and eight 35/70 GB DLT drives provides very high speed (151.58 GB/hr) and large capacity (more than 560 GB on a single set of mounted tapes). At 2:1 compression, storage capacity reaches 1.12 terabytes. Restore speeds varied, but were generally about 60 GB/hr.

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7
%
(cont.)
DLT Tape Array II
ECG075.0997
T
EST
2
T
APE
D
RIVES IN
R
ELATION TO
SCSI C
ARDS
N
OVELL
I
NTRANET
W
ARE
151 GB/
HR BACKUP
Novell IntranetWare 4.11
Cheyenne JETserve 4.0 Plus
Image
8 GB
4:1
RAIT-0
ProLiant 6000, three Pentium Pro 200 processors, 512 K
cache, 384 MB RAM
224-GB array (four SMART-2/P Array Controllers
with fifty-six 4-GB drives)
35/70 GB DLT drive(s)
Wide-Ultra SCSI-3 cards
(All Compaq off-the-shelf products)
To observe the performance of various numbers of tape drives in relation to various numbers of
SCSI cards under Novell IntranetWare 4.11 on a very high-performance backup server
configuration.
In a typical DLT Tape Array II solution, two SCSI cards driving four 35/70 GB DLT drives
offer a reasonable backup speed (121 GB/hr). A configuration of four SCSI cards and eight
35/70 GB DLT drives provides very high speed (151.58 GB/hr) and large capacity (more than
560 GB on a single set of mounted tapes). At 2:1 compression, storage capacity reaches 1.12
terabytes.
Restore speeds varied, but were generally about 60 GB/hr.
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