Coolmax CD-320 Especificaciones descargar pdf (Pagina 10)

When using the SAFE33 and SAFE50 storage policies, it is possible to begin with a single hard

disk drive, and then add a second hard disk drive to increase the size of the BIG virtual volume

(and to provide the data protection of the SAFE volume using mirroring) when additional hard

disk storage capacity is added.

Figure 8 – Example of SAFE33 or SAFE50 Capacity Expansion

Figure 8 shows an example of a single-drive SAFE33 or SAFE50 Storage Policy configuration

consisting of a 100GB hard drive (Drive A) connected to Port 0. Assuming that a SAFE50

Storage Policy is used, a 50GB SAFE volume and a 50GB BIG volume will be created, although

the SAFE volume will be in a degraded (non-mirrored) state. When Drive B is connected to Port

1 to increase the storage capacity, the SAFE volume will be able to complete the mirror by using

50GB from the Drive B, and the remaining capacity will be added to the existing BIG volume,

increasing it from 50GB to 100GB.

Important: Some additional steps will be needed on your host computer system to allow it to recognize a

volume that has been dynamically expanded – refer to Appendix A through C for more information.

Cascading

The cascading feature allows you to configure as much storage capacity as you need; as few as

two drives or as many as eight. Refer to Figure 9 for some examples of cascaded configurations.

Cascading allows you to customize the amount of storage capacity without the financial,

technical and logistical downsides of traditional backup and restore methods. Multiple CoolMax

CD-320 can be daisy-chained together in a hierarchical structure that combines the storage

capacities from all units. By combining multiple CoolMax CD-320 in a cascaded configuration,

multiple device/drive configurations can be presented as virtual volumes, which results in a

larger storage capacity than upgrading to larger physical hard disk drives.

You can cascade CoolMax CD-320 up to 3 levels deep, with one top-level node, up to two

second-level nodes and up to four third-level nodes. Any combination of hard drives and/or

CoolMax CD-320s can be connected in a cascaded configuration. You can connect any of the

following combinations of devices to a SteelVine processor: two hard drives, one hard drive and

one CoolMax CD-320 , or two CoolMax CD-320s.

Note: The SiI5733 CoolMax CD-320 can only be used as a top-level node; it cannot be a subordinate

node within a cascaded configuration.

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Coolmax CD-320 Especificaciones Pagina 10