DataKeeper
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- Joined
- Feb 19, 2015
- Messages
- 223
Currently have 18 new and tested 4TB WD RED drives in a 24-bay chassis allowing an additional 6 drives later. I have 2 primary storage uses for this system.. 1. Personal Photos and Documents (PPDs) & 2. Media mostly with other shared storage. The PPDs are very important to me and thus the originals are stored on my desktop and another external drive kept in a fire/water proof safe. The PPDs on this freenas server would be mostly for backup and rarely accessed. The Media will be accessed 24/7 in 1 way or another via music streaming to various rooms of the house to PLEX, etc.
With 18 drives currently I could create a Media pool with a 6 drive vdev raidz2 then extend this with a second 6 drive vdev raidz2. I can extend this later with an additional 6 drive vdev. Next.. Create a new pool, say PPDs, with a 5 drive vdev raidz2. This leaves 1 spare drive available as a hot spare if needed down the road.
Second option with separate pools would be 2 vdevs of 8 drives, a single vdev with 6 drives and 2 hot spares.
Third option with separate pools would be 2 vdevs of 8 drives, a single vdev raidz3 with 7 drives and 1 hot spare.
My questions are..
For the most part the Media can easily be replaced and I'm not super concerned over that data. My photo collection is worth substantially more to me and I'm just looking for the best storage option.
Comments are more then welcomed!
Thanks
With 18 drives currently I could create a Media pool with a 6 drive vdev raidz2 then extend this with a second 6 drive vdev raidz2. I can extend this later with an additional 6 drive vdev. Next.. Create a new pool, say PPDs, with a 5 drive vdev raidz2. This leaves 1 spare drive available as a hot spare if needed down the road.
Second option with separate pools would be 2 vdevs of 8 drives, a single vdev with 6 drives and 2 hot spares.
Third option with separate pools would be 2 vdevs of 8 drives, a single vdev raidz3 with 7 drives and 1 hot spare.
My questions are..
- Does it make sense to create 2 different pools (say ppds & media) or a single pool with datasets to separate them?
- Is replication easier or better from its own pool or a dataset?
- Am I correct in believing that by extending the Media pool it becomes a mirrored raidz2 automatically?
- My understanding is that a hot spare, or two, are now supported and allow for safer reslivering when a drive is just failing as it may not completely degraded. Are they now worth having?
For the most part the Media can easily be replaced and I'm not super concerned over that data. My photo collection is worth substantially more to me and I'm just looking for the best storage option.
Comments are more then welcomed!
Thanks