| PRIMECLUSTER Global Disk Services Configuration and Administration Guide 4.2 (Linux) |
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| Appendix A General Notes | > A.1 Rules |
The number of disks you can register with one class has the following limitations:
To root class [Itanium], you can register up to 100 disks.
To local class [Linux2.6] or shared class, you can register up to 1024 disks.
There are the following limits to the number of disks that can be connected to one group:
To a mirror group, a maximum of 8 disks and lower level groups can be connected collectively. In other words, a maximum of eight-way multiplex mirroring is supported. However, be aware that the spare disk that will be automatically connected when a disk failure occurs is also included in the count.
To a stripe group, a maximum of 64 disks and lower level groups can be connected collectively. In other words, a maximum of 64-column striping is supported.
To a concatenation group, a maximum of 64 disks can be connected. In other words, a maximum of 64 disks can be concatenated.
To a switch group, a maximum of 2 disks can be connected.
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