Field
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Indicates
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Name
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The profile name.
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Description
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The profile description.
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State
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The profile state:
- In Use - A pool exists that uses this profile.
- Not In Use - No pools exist that use this profile.
You cannot modify or delete profiles that are in use.
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Type
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The profile type:
- User - The profile was created by a user.
- Factory - The profile was provided as part of the system software.
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RAID Level
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The RAID level of the virtual disk:
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Segment Size
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The associated segment size in kilobytes: 4 KB, 8 KB, 16 KB, 32 KB, or 64 KB.
This is an array attribute and must be the same for all virtual disks within an array. Once a virtual disk exists on any of the array's trays (there can be only 0, 1, or 2 virtual disks on a tray), then all of the virtual disks on that array's trays must have the same segment size as that virtual disk. Be careful when allocating segment size to a profile, as you cannot have pools whose profiles differ in segment size. You can configure a system with an array that has unused disks in which no virtual disks can be configured if the pools' profiles do not have the same segment size.
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Dedicated Hot Spare
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Whether the profile has an associated dedicated hot spare: Yes or No. The system has dedicated hot spares (controlled by this attribute) and array hot spares (controlled as an editable attribute on the Array Details page).
- Dedicated hot spare - There is a one-to-one correspondence between a dedicated hot spare and a virtual disk (that is, the hot spare is dedicated to a specific virtual disk). This profile attribute controls whether a dedicated hot spare disk is assigned to the virtual disk when a virtual disk is created in a pool with this profile.
- Array hot spare - This is a disk in an array that can act as a hot spare for any disk in the array.
The number of drives and dedicated hot spare attributes taken together define how many disks are consumed for each virtual disk in a pool.
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Read-Ahead Enabled
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Whether the read-ahead attribute is enabled or disabled. This array attribute must be the same for all virtual disks within an array. Once a virtual disk exists on any of an array's trays (you can have only 0, 1, or 2 virtual disks on a tray), all of the virtual disks on that array's trays must have a Read-Ahead Enabled setting that matches that virtual disk's Read-Ahead Enabled setting. You must plan the use of the Read-Ahead Enabled setting carefully, because you cannot have pools whose profiles have different Read-Ahead Enabled settings on the same array. You can configure a system with unused disks in which no virtual disks can be configured if the pools' profiles do not match the Read-Ahead Enabled setting.
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# Drives
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The number of drives associated with this profile. This is the number of disk drives that are used to construct the virtual disk in a pool using this profile.
The number of drives can be 2 to 14, or variable. If it is set to variable, you must specify the number when you create virtual disks (that is, when you add storage to the pool).
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Array Type
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The type of array.
The options below match only a specific array configuration (2x2, 2x4, and 2x6). If a profile has one of these options but the specific array is unavailable, the profile cannot be used.
Exact Match: IOPs (2x4 array)
Exact Match: Bandwidth (2x2 array)
Exact Match: Capacity (2x6 array)
The following options and rules attempt to match the best available array based on the environment (IOPs, bandwidth, capacity):
Best Available Match: IOPs - 2x4 > 2x2 > 2x6
Best Available Match: Bandwidth- 2x2 > 2x4 > 2x6
Best Available Match: Capacity - 2x6 > 2x4 > 2x2
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Virtualization Strategy
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The type of virtualization that is associated with this profile, either Striped or Concatenated.
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Stripe Size
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The stripe size associated with this profile, if it is striped: 128 KB, 256 KB, 1 MB, 2 MB, 4 MB, 8 MB, or 16 MB.
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