ActiveScale™ OS X100 Rackless Installation Guide
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k. Enter your system’s geolocation information.
Tip:
The system applies
Location
settings to all three sites; you can change any
site's settings through the ActiveScale SM later.
Tip: Street Address
,
City
,
State
, and
Country
are optional. Default
Country
is
USA
.
Tip: Timezone
is optional; it defaults to
America/Los_Angeles (UTC-8)
.
l. Choose a durability policy for the system.
The table below describes the durability policies and how they behave with the default value for
the small file threshold.
Warning:
Once the post-login configuration wizard completes, you can no
longer change the durability policy.
Tip: Enable Small File Policy
is optional; it defaults to
No
. The
Small File
Threshold (bytes)
defaults to the preset value for the storage policy you select.
Table 10
-
5. Storage policies for a multi-site ActiveScale P100
Policy name
Description
Details
Availability
optimized
,
multi-site
This policy has the highest
availability. Usable capacity will
be 56% of raw when storing large
objects.
• Large files: 18/8.
• Small files: 10/8 with a threshold 0 to 8,388,608 bytes.
Default: 524,288 bytes.
• Average client large file size to avoid stranded storage:
645-904 KB depending on disk capacity.
• Storage overhead: Large files: 1.8x, Small files: 5.5x.
• Durability: Up to 19 nines.
• Read availability: Objects are retrievable even if one site is
unavailable and two additional drives fail.
Balanced
,
multi-site
This policy provides balance
between usable capacity and
availability. Usable capacity will
be 61% of raw when storing large
objects.
• Large files: 18/7
• Small files: 9/7 with a threshold of 0 to 8,388,608 bytes.
Default: 524,288 bytes.
• Average client large file size to avoid stranded storage:
710-995 KB depending on disk capacity.
• Storage overhead: Large files: 1.64x, Small files: 5x.
• Durability: Up to 19 nines.
• Read availability: Objects are retrievable even if one site is
unavailable and one additional drive fails.
Default
, multi-
site
Availability optimized with a small file threshold of 524,288
bytes.
Summary of Contents for ActiveScale X100
Page 28: ...ActiveScale OS X100 Rackless Installation Guide 28...
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Page 59: ...ActiveScale OS X100 Rackless Installation Guide 59 Figure 3 14 Installing the I O module...
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Page 91: ...ActiveScale OS X100 Rackless Installation Guide 91 Figure 6 36 Cabling Storage Node 4...
Page 92: ...ActiveScale OS X100 Rackless Installation Guide 92 Figure 6 37 Cabling Storage Node 5...
Page 94: ...ActiveScale OS X100 Rackless Installation Guide 94 Figure 6 39 Cabling System Node 1...
Page 95: ...ActiveScale OS X100 Rackless Installation Guide 95 Figure 6 40 Cabling System Node 2...
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Page 127: ...ActiveScale OS X100 Rackless Installation Guide 127 Figure 10 19 Post Login Storage Policy...
Page 155: ...ActiveScale OS X100 Rackless Installation Guide 155 Figure 10 47 Post Login Durability Policy...
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