Administrator Guide

If Tier 1 fills to within 95% of capacity, Storage Center creates a space-management snapshot and moves it immediately to Tier 2 to free
up space on Tier 1. The space-management snapshot is moved immediately and does not wait for a scheduled data progression. Space-
management snapshots are marked as Created On Demand and cannot be modified manually or used to create View volumes. Space-
management snapshots coalesce into the next scheduled or manual snapshot. Storage Center creates only one on demand snapshot per
volume at a time.
Write-Intensive (Tier 1)
The Write-Intensive storage profile directs all initial writes to write-intensive SSDs on Tier 1 (RAID 10). The data does not progress to any
other tier. This profile is useful for storing transaction logs and temporary database files.
Flash Only with Progression (Tier 1 to Tier 2)
The Flash Only with Progression storage profile performs initial writes on high-performance Tier 1 drives. Less active data progresses to
Tier 2, but remains on SSDs. This profile is useful for storing volumes with data that requires optimal read performance, such as golden
images, linked clones, and some databases.
Low Priority with Progression (Tier 3 to Tier 2)
The Low Priority with Progression storage profile directs initial writes to less expensive Tier 3 (RAID 10) drives, and then allows frequently
accessed data to progress to Tier 2. This profile is useful for migrating large amounts of data to Storage Center without overloading Tier 1
SSDs.
Storage Profiles for SCv2000 Series Storage Systems
The following table summarizes the storage profiles available to SCv2000 series storage systems:
Name
Initial Write Tier Tier (T) and RAID Levels RAID Tiering
Balanced 1
Writes: T1 RAID 10
Snapshots: T1 RAID 5/6
Between RAID types only
Maximize Performance 1
Writes: T1 RAID 10
Snapshots: T1 RAID 10
No
Maximize Efficiency 1
Writes: T1 RAID 5/6
Snapshots: T1 RAID 5/6
No
Balanced
The Balanced storage profile balances efficiency and performance for any volume using that storage profile.
When a volume uses the Balanced storage profile, all new data is written to RAID 10. When Storage Center creates a snapshot, Data
Progression moves snapshot data from RAID 10 to RAID 5/6.
Maximize Performance
Maximize Performance keeps new data and snapshot data on RAID 10 to increase performance. Maximize Performance is useful for
volumes with important and frequently used data.
Maximize Efficiency
Maximize Efficiency writes new data to RAID 5/6 and keeps snapshot data on RAID 5/6. Use Maximize Efficiency for volumes with less-
important data and infrequently used data.
User Interface for Storage Center Management
Most storage configuration and management for an individual Storage Center is performed from the Storage view in the Storage
Manager Client. Select a Storage Center in the Storage navigation pane to view and manage it.
The following tabs appear in the display pane when a Storage Center is selected:
• Summary Tab
• Storage Tab
Storage Center Overview
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