Administrator Guide

Flash-Optimized with Progression (Tier 1 to All Tiers)
The Flash Optimized with Progression storage profile provides the most efficient storage for an enclosure containing both
read-intensive and write-intensive SSDs. When a storage type uses this profile, all new data is written to write-intensive Tier 1
drives. Snapshot data is moved to Tier 2, and less-active data progresses to Tier 3.
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.
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Storage Center Overview