Drive Management
Managing Drives
The Drive Management page provides settings for managing storage and lets you apply global settings for drives on your
Setting Write Caching
Select a value for disk write caching.
Write caching is a mechanism that attempts to separate the fast processing speed of the
With write caching disabled, every write to drive causes the
While write caching does improve performance, there are some risks. The system responds that the data is written to drive when in fact it has only been written to cache. Should the
This is because cache memory is volatile. If you lose power, the contents of the cache are lost. Therefore, if there were any pending writes in the cache that were not written to the drive, they will be lost forever. Using a UPS (Uninterrupted Power Supply) can mitigate the risk associated with write caching, which is why it is recommended to only enable this feature when a UPS is connected.
Applying Global Drive Management Settings
1.Click Settings.
2.To change the protection, choose a value from the
●Mirror (RAID 1)
Uses half of the storage space for protection, leaving half for actual data.
●Mirror Stripe (RAID 10)
Uses half of the storage space for protection, leaving half for actual data.
●Parity (RAID 5)
Uses the space corresponding to one
●Striped (RAID 0)
Distributes data across several drives in a way that gives improved speed at any given instant.
●None
Turns off data protection and leaves your data vulnerable to data loss.
3.Select a value for disk write caching.
4.Check Enable periodic consistency check to enable a monthly parity or mirror consistency check. The check helps to prevent a single drive failure from becoming a
5.Click Apply to save your changes.
46 Managing Drives