Trexx wrote: ↑
Thu Jun 06, 2019 10:13 am
Only change I might make would be using static volume for your SSD (Raid-1) config especially if you are using M.2 SSD's for it, but you will trade off snapshot support for the extra performance.
I usually go with 10% over-provision for SSD's as a staring point.
yeah i considered static volume for it, but then i wouldn't be able to use snapshots. I think that snapshot protection to protect against ransomware on the OS raid (the 2x256gb m.2 raid1) would be better? what do you think
(i was planning on 5% reserved for snapshots which is the barest minimum).
I have no idea how much performance trade off there will be, but surely it's not going to be that bad vs hdd... or is it?
It's 20% is lesser performance, static vol vs thick vol.
also i thought performance dip only occurs when snapshots are being done. In my snapshot setting i have it set to do a daily scheduled snapshots, so it's not actively doing it all the time, just during the scheduled time only. But what does worry me is how much wear would snapshots incur for ssds? with hdds this was not even a problem for me. but with ssds i need to be mindful not to cause it to wear out too much from excessive delete operations happening too frequently (the snapshots settings have a delete old snapshot once it becomes full, and stay within the 5% reserved space quota)?
i don't know how much storage QTS tends to use, but certainly 256gb (probably 20% less after formating and reserving 5% etc) should be enough for the QTS OS and the apps in appcenter?
I plan to use VMs separately on the Intel SSD (if i don't have enough space on the M.2 ssd. tbh i should have went for 2x 500gb
the 4x4tb pool2 raid i will also reserve snapshots (5% also)
right now i have helpdesk remote session active, although i'm not sure if they are actively checking regarding the stability issue i'm having which resulted in multiple raid rebuilds over a short time, and hdd disconnection (absurdly they wanted me to check on a low priority issue for a different ticket i had also, while i had a more urgent issue with possible risk of data loss happening right now....
). and system generally feeling slow at times (which by the way i don't think is a qts 4.4.1 problem, because i have it on the ts-653a and it's running swellingly)
So i'm pretty much waiting on them to troubleshoot, before i can reinitialize. (at this point it feels like i'm the only one doing the troubleshoot diligently on my end
speaking of which, to reinitialize (to the new setup as mentioned), i'm suppose to remove all the hdds? EXCEPT the 2xm.2 ssds. then when that's done, go to storage manager, setup the 2nd pool for the 4x4tb hdds. removing the hdd4 for the new wd red 4tb)
That hdd4 hgst 4tb i'll do a zero fill then move it to the ts-659 Pro II Smart says it's okay but... i'm not too sure about that