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Can I use different drives together?
Drives in the chassis do not need to be from the same manufacturer, or have the same RPM. Drives in a given virtual pool, and any spares for that pool, must be from the same manufacturer and model, and have the same RPMs.
Does drive order matter?
The Storage Controller tracks drives by their physical location. Do not change drive slots on a live server.
Can two servers share a Virtual Drive simultaneously?
You may share a single drive among multiple Compute Modules with the Shared LUN feature
Do I have to have 2 Storage Control Modules?
Only one Storage Controller is required. The second is optional on the MFSYS25 or MFSYS35.
Can I copy a virtual drive to another virtual drive, or backup the entire image pool?
We are developing an offline cloning tool.
Can you store the RAID or storage pool configuration, and deploy the configuration widely?
No.
Can I create global spare drives? How do global spares work?
A global spare is a drive that can be used by any RAID array, and is not dedicated to one in particular.
Can you add drives from the lower bay?
Each Storage Controller is connected to both the upper and lower bay.
What is the maximum virtual drive size for the storage pool?
No artificial limit is enforced. The maximum size is the sum total of all your drive space.
What is the initial state of the server?
The system ships with no pre-configured state, allowing you to fully customize the storage subsystem.
How do I configure my external RAID subsystem through the GUI? Do I have to attach it to both SCMs if I run in dual-mode?
Please see the Tested Hardware and Operating System list for the list of peripherals that can be attached to the external SAS port. You must order external RAID subsystem units with a second controller to be able to attach to both SCMs simultaneously.
Can it support SAS and SATA drives?
See the above link for tested hard drives, as well
If my SCM fails, will I lose my drive information?
The drive information is stored on a flash card on the midplane. Drive information will be saved even if you replace the SCM.
What are the pros and cons of a single drive pool versus multiple pools?
Although a single pool is easier to create and monitor, multiple pools allow you to isolate servers in cases of extreme drive usage by OSes or applications.
How can I optimize my RAID performance?
Multiple storage pools optimize performance. Having a second storage controller can increase performance if the second controller is dedicated to one or more compute modules.
What read/write speed should I expect?
Unfortunately, this question is dependent on the pool size, RAID type, number of hard drives, operating system, and benchmark tool used. You will see a drop in read/write speed during a rebuild, but this will not affect other storage pools.
What is the maximum speed of the controller or backplane?
Each storage controller has six separate dedicated 3Gbps connections, one to each compute module.
This applies to:
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