Compaq ProLiant 6000 Compaq DLT Tape Array II: High-Performance Backup of Ente - Page 27

Hannel, Rbitrated, Ackup Of, Indows

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ECG075.0997 (cont.) DLT Tape Array II ... TEST 10 FIBRE CHANNEL-ARBITRATED LOOP (FC-AL) LOOPBASED BACKUP OF 800 GB  WINDOWS NT Windows NT 4.0 Cheyenne ARCserve 6.0 for Windows NT By file  four jobs 2 GB 4:1 RAIT-0 (not significant when using one drive) ProLiant 6000, four Pentium Pro 200 processors, 512K cache, 2 GB RAM 2.5-terabyte FC-AL drive array 35/70 GB DLT drive(s) Wide-Ultra SCSI-3 cards (All Compaq off-the-shelf products) To determine whether the DLT Tape Array II and its associated 35/70 GB DLT drives can successfully back up very large amounts of data (800 GB). This test consisted of running four simultaneous jobs, each backing up a separate logical drive under Windows NT 4.0. Each drive had 200 GB of data in 200,738 files; each file was a 1-MB 4:1 compressible data set. The files were stored in 6,693 directories, in a structure that was nested more than 100 levels deep. The backup was successful. The backup went to two sets of four tapes (RAID-0), for a total of eight tapes. The tapes were verified and there was no data loss at any point. This test was performed on the Max-Storage system in the Compaq Maximum Configuration Lab. The lab has multiple ProLiant 6000 systems with FC-AL storage systems. These FC-AL storage systems use 1-gigabit fiber optic links to connect large (2.5 to 3.5 terabytes) disk arrays to the servers (Figure 16).

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(cont.)
DLT Tape Array II
ECG075.0997
T
EST
10
F
IBRE
C
HANNEL
-A
RBITRATED
L
OOP
(FC-AL) L
OOP
-
B
ASED
B
ACKUP OF
800 GB
W
INDOWS
NT
Windows NT 4.0
Cheyenne ARCserve 6.0 for Windows NT
By file
four jobs
2 GB
4:1
RAIT-0 (not significant when using one drive)
ProLiant 6000, four Pentium Pro 200 processors, 512K
cache, 2 GB RAM
2.5-terabyte FC-AL drive array
35/70 GB DLT drive(s)
Wide-Ultra SCSI-3 cards
(All Compaq off-the-shelf products)
To determine whether the DLT Tape Array II and its associated 35/70 GB DLT drives can
successfully back up very large amounts of data (800 GB).
This test consisted of running four simultaneous jobs, each backing up a separate logical drive
under Windows NT 4.0. Each drive had 200 GB of data in 200,738 files; each file was a 1-MB
4:1 compressible data set. The files were stored in 6,693 directories, in a structure that was
nested more than 100 levels deep.
The backup was successful. The backup went to two sets of four tapes (RAID-0), for a total of
eight tapes. The tapes were verified and there was no data loss at any point.
This test was performed on the Max-Storage system in the Compaq Maximum Configuration
Lab. The lab has multiple ProLiant 6000 systems with FC-AL storage systems. These FC-AL
storage systems use 1-gigabit fiber optic links to connect large (2.5 to 3.5 terabytes) disk arrays
to the servers (Figure 16).
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