User Guide

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RAID Scrubbing: RAID Scrubbing detects the integrity and consistency of RAID 5 and RAID 6
drive data. Regular use of this feature can help you confirm the integrity of your data and fix
inconsistencies. If a problem that cannot be repaired is found, your NAS will immediately warn
you so that you can respond to unexpected issues early.If the system is shut down, RAID
Scrubbing will be disabled.
About SSD Trim
Enable SSD Trim allows the SSDs installed on the NAS to maintain stable read/write
performance while simultaneously controlling the frequency of overwriting to specific blocks,
extending the life of SSDs.
About SSD Cache
Traditional hard drives are not as fast as SSDs, but their capacity and durability are not as good
as traditional hard drives. The best way to combine the best of both worlds is with SSD caching.
The SSD cache feature saves frequently accessed file data on a hard disk and stores it on an SSD,
thereby optimizing the response time and transfer rates of users when accessing data. ASUSTOR
NAS* supports read-only access and read-write cache mode. After following the installation
wizard, you will be able to easily access your storage spaces and achieve the best balance of
capacity and performance.
* Supported Models: AS31/32/50/51/52/53/61/62/63/64/65/66/70/71 series
Note:
1. For models with M.2 slots, you are now able to choose M.2 SSD for caching or storage. To
maintain optimal performance and quality, M.2 drives may only be paired with other M.2
drives in a RAID array.
2. Btrfs and Volume snapshot is only supported on: AS31, 32, 40, 50, 51, 52, 53, 61, 62, 63, 64,
70, Lockerstor and Lockerstor Pro.
See More:
Drive
Here you can check on the status of all your disks. You can also inspect their S.M.A.R.T.
information and conduct tests on your disks.
NAS 202 - Using SSD Caching on an ASUSTOR NAS