# Volume and Storage pools urgent advice required **URL:** \ **Category:** Synology\ **Tags:** volume\ **Created:** [March 27, 2023, 3:36pm UTC](https://forums.spacerex.co/t/volume-and-storage-pools-urgent-advice-required/279 "2023-03-27T15:36:16Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![JenMedia](https://forums.spacerex.co/user_avatar/forums.spacerex.co/jenmedia/32/140_2.png) [@JenMedia](https://forums.spacerex.co/u/JenMedia)\ **Post date:** [March 27, 2023, 3:36pm UTC](https://forums.spacerex.co/t/volume-and-storage-pools-urgent-advice-required/279/1 "2023-03-27T15:36:16Z")
Hi.I’m new to Synology and also NAS. Can I get some advice? I have a 8 bay Nas and just wondering if I its better to have two volumes so I can back up from one volume to the next. what do you think? best way to set up 8 bay nas for Home files, Photography, Videography, Media to share, Work. will 4 x12Tb and 4 x 18TB, would you pool the lot and just have shared folders or would you split it into different volumes? I put in the 18TBs first and 2 NVMEs and created Vol 1 and then realised I should have put the 12s in first if `I wanted ONE huge Pool/Volume. I have copied the data over to the 12s which are now in a Second Pool/ Volume but my NVMes are related to Vol 1. Can I de activate Vol one so I can re add it in and add to Pool 2 ( as 12 small and 18 Larger) but what will happed to the NVME cache that is related to Vol 1 and has 36 GB on it ? Is my system software on the first Vol which I want to take out and reinstall ? or on the NVME and how do I make sure I save this system software off these NVMEs. I need to deactivate these and the Vol.1 ( making Vol 2 into vol 1) so I can reinstall these 18Tbs adding to the new Vo1 12 TB pool. ( so it becomes 4x12TB and 4x18TB) rather than the other way round. ) Do I deactivate the drive and the NMVE associated with Vol 1 to do this . Is there system software on the cache NVMEs? How do I transfer this over? Thanks in advance ---
**Author:** ![Will](https://forums.spacerex.co/user_avatar/forums.spacerex.co/will/32/14_2.png) [@Will](https://forums.spacerex.co/u/Will)\ **Post date:** [March 28, 2023, 1:07pm UTC](https://forums.spacerex.co/t/volume-and-storage-pools-urgent-advice-required/279/2 "2023-03-28T13:07:36Z")
So the most reliable setup you would have would be two volumes, having one of them backed up to the other. This way if your entire volume crashes, you still have a full copy of your data. The problem with this is the store overhead. > [@JenMedia](#): > > I have copied the data over to the 12s which are now in a Second Pool/ Volume but my NVMes are related to Vol 1. Can I de activate Vol one so I can re add it in and add to Pool 2 ( as 12 small and 18 Larger) but what will happed to the NVME cache that is related to Vol 1 and has 36 GB on it ? So you would just delete volume 1, which would release the NVMe drives. You could then add your drives and NVMe’s to volume 2 ---
**Author:** ![JenMedia](https://forums.spacerex.co/user_avatar/forums.spacerex.co/jenmedia/32/140_2.png) [@JenMedia](https://forums.spacerex.co/u/JenMedia)\ **Post date:** [March 29, 2023, 10:23pm UTC](https://forums.spacerex.co/t/volume-and-storage-pools-urgent-advice-required/279/3 "2023-03-29T22:23:56Z")
Thanks Will. After deactivating a drive thinking I needed to do it one at a time and being freaked out with the bleeping. I did just remove Vol 1. Im now just waiting for the Vol 2. to finish adding its fourth 12TB drive and then I can add the old 18Tb volumes. I decided I just want one large Volume of space. Could take a while to rebuild tho! ---
**Author:** ![Nas.CloudBusinessPo](https://forums.spacerex.co/user_avatar/forums.spacerex.co/nas.cloudbusinesspo/32/94_2.png) [@Nas.CloudBusinessPo](https://forums.spacerex.co/u/Nas.CloudBusinessPo)\ **Post date:** [April 9, 2023, 3:52pm UTC](https://forums.spacerex.co/t/volume-and-storage-pools-urgent-advice-required/279/4 "2023-04-09T15:52:53Z")
I chose to ad a dx517 to my Nas for the second volume. There is my backup.