Chapter XX Configure Storage System
This chapter introduces how to use SANTricity storage management software to carry out
configuration on storage system, introduces concepts and steps on creating RAID volume group,
dynamic disk pool (DDP), LUN and mapping.
20.1
Key terminology
Unconfigured capacity
Capacity on unallocated disk driver in storage arrays to be used for system configuration, and
unconfigured capacity could be used to configure unallocated disk driver into a volume group.
Spare capacity
Remaining capacity on existing volume group, and spare capacity on volume group could be
used to create another volume.
Default group
If storage space is not divided into storage partitions, all volumes will be mapped to default
group of the storage.
FDE disk
Full disk encryption is a kind of encryption hard disk, and all data written into this hard disk
will be encrypted.
DDP
A new Raid technology, which needs not to add any hot spare disk, and could reach a
recovery speed 10 times that of traditional Raid.
20.2
Capacity allocating notes
1. Unconfigured capacity, or spare capacity of exiting volume group or DDP could be used to
create a volume.
If create a volume using unconfigured capacity, or create a volume for new volume group or
DDP, it is required to create a new volume group first (a group of disk drivers using raid).
If create a volume using spare capacity, it is only required to appoint parameters of this
volume, for volume group or DDP has already existed.
2. While configuring volume capacity on storage arrays, please be sure to reserve some
unallocated disk drivers, these drivers may be needed for the following reasons:
To create an extra volume group for new capacity;
To be used in hot spare disk protection;
To increase spare capacity in existing volume group or DDP to meet capacity needs in future;
To be used in extra storage space required by certain advanced functions (i.e. snapshot
volume).
3. If storage arrays contain more than one disk driver (i.e. SAS disk and SSD disk), each disk
Summary of Contents for AS500H
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