HP StorageWorks 6000 HP StorageWorks VLS and D2D Solutions Guide (AG306-96028, - Page 89

Table 7 Sample Initialization and Replication Times - storageworks 1000

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Table 7 shows the typical ongoing replication times depending on link speeds and how long the initialization process will take depending on if initialization is done via co-location or the WAN link. Use this table as a reference guide. Table 7 Sample Initialization and Replication Times Initial backup size in GB Link speed in Mb/sec Backup time at 25 MB/sec in hours Initial. time via WAN in hours (66% efficiency uncontended), compression at 1.5:1, deduplication at 1.5:1, local backups in progress Initial. time via co-location in hours, replication on GbE Ongoing replication time in hours (1% Data change rate) - uncontended link (100% utilization) Limiting factor in replication Ongoing replication time in hours (1% data change rate) - 25% utilization link Limiting factor in replication 50 100 2 500 1000 100 500 10 1000 100 15 500 1000 100 500 30 1000 100 50 0.6 1.1 5.6 11.1 1.1 5.6 11.1 1.1 5.6 11.1 1.1 5.6 11.1 1.1 37.1 0.5 74.2 1.0 370.9* 5.0 741.8* 9.9 14.8 1.0 74.2 5.0 148.4* 9.9 9.9 1.0 49.5 5.0 98.9* 9.9 4.9 1.0 24.7 5.0 49.5 9.9 3.0 1.0 1.5 3.1 15.3* 30.6* 0.6 3.1 6.1 0.4 2.1 4.3 0.4 2.1 4.3 0.4 WAN link 6.1 12.3 61.3* 122.6* WAN link 2.5 12.3 24.5 WAN link/D2D 1.6 appliance 8.2 16.3 D2D appliance 0.8 4.1 8.2 D2D appliance 0.5 WAN link WAN link WAN link WAN link WAN link/D2D appliance HP StorageWorks VLS and D2D Solutions Guide 89

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Table 7
shows the typical ongoing replication times depending on link speeds and how long the
initialization process will take depending on if initialization is done via co-location or the WAN link.
Use this table as a reference guide.
Table 7 Sample Initialization and Replication Times
Limiting
factor in
replica-
tion
Ongoing
replica-
tion time
in hours
(1% data
change
rate)
—
25% util-
ization
link
Limiting
factor in
replica-
tion
Ongoing
replica-
tion time
in hours
(1% Data
change
rate)
–
unconten-
ded link
(100%
utiliza-
tion)
Initial.
time via
co-loca-
tion in
hours,
replica-
tion on
GbE
Initial.
time via
WAN in
hours
(66% effi-
ciency
unconten-
ded),
compres-
sion at
1.5:1,
deduplic-
ation at
1.5:1,
local
backups
in pro-
gress
Backup
time at
25
MB/sec
in hours
Link
speed in
Mb/sec
Initial
backup
size in
GB
WAN
link
6.1
WAN
link
1.5
0.5
37.1
0.6
2
50
12.3
3.1
1.0
74.2
1.1
100
61.3
*
15.3
*
5.0
370.9
*
5.6
500
122.6
*
30.6
*
9.9
741.8
*
11.1
1000
WAN
link
2.5
WAN
link
0.6
1.0
14.8
1.1
10
100
12.3
3.1
5.0
74.2
5.6
500
24.5
6.1
9.9
148.4
*
11.1
1000
WAN
link
1.6
WAN
link/D2D
appliance
0.4
1.0
9.9
1.1
15
100
8.2
2.1
5.0
49.5
5.6
500
16.3
4.3
9.9
98.9
*
11.1
1000
WAN
link
0.8
D2D ap-
pliance
0.4
1.0
4.9
1.1
30
100
4.1
2.1
5.0
24.7
5.6
500
8.2
4.3
9.9
49.5
11.1
1000
WAN
link/D2D
appliance
0.5
D2D ap-
pliance
0.4
1.0
3.0
1.1
50
100
HP StorageWorks VLS and D2D Solutions Guide
89