Reply To: Synology NAS Cache Hi all, Synology do an Add-on card for Cache storage. So, as I’ve noticed recently that machines are hanging when creating new folder on NAs drive i.e. it waits and…

[kev2021]

I have 2 volumes on the NAS.

1 is RAID5 ext4 (originally setup- 5 drives), other is a new volume which is RAID 5 btrfs (3 drives).

Mainly did this as there was lots of consensus online that if going over 6 drives or over a certain size in a RAID 5 setup, should move to a different raid (think maybe raid6?) allowing for 2 drive failures so decided to setup a new volume in RAID 5 rather than effectively loose storage capacity.

Lots of mentioning online of potential data loss etc if using large drives as they are generally all purchased at the same time so if 1 fails, possibility other fails during the rebuild of array etc as it does take a good 24hrs or so to rebuild.

By creating 2 volumes, I’ve moved some data off the to the newer volume so each volume is now approx. 50% used so plenty of space on each and also limits the potential of loosing data if worst happened.

I do however back most of the stuff up to a external WD USB drive that plugs into the nas USB port and I have set USB Copy to backup the various folders I want to back up.

Other folders which are not “essential” I’ve ignored as the backup volume isn’t large enough to backup the NAS if the storage space got near capacity so I’ve opted to try and mitigate this by not backup up what isn’t essential so that if the space does grow, the backup will still run.

I’ve got the backup on a timer so it comes on 1 evening per week, the USB copy runs and then it gets turned off by the timer the following morning. All jobs are completing so far and its been running this way for a good year or two now.

Thanks

Kev

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