Steve 46 wrote:1. If I were to load up the Ultra 4 Plus with four 2TB HDD's and use the X-RAID configuration for redundant backup, what is going to be my maximum actual storage capacity? I'm assuming it is going to be 4TB but wanted to confirm.
Since they are both in the same family, you should be able to simply more the drives over with no problem. You should make a backup first though.Steve 46 wrote:2. I am going to backup all data and remove the two HDD's I have in the Ultra 2 Plus and install these drives into the Ultra 4 Plus to start. During the initial setup of the Ultra 4 Plus will it need to re-format the drives thereby erasing all data or is there a way to set up the X-RAID without erasing the data on the HDD's?
No.Steve 46 wrote:3. Regarding future expansion, when I am ready to add two more HDD's to the Ultra 4 Plus do they have to be the exact same model of Hitachi HDD's?
Link aggregation is only applicable on the Pro line, as it is a business feature. So you will not get it on an ultra plus. It won't improve performance for a single user, though there is an improvement if you have multiple devices accessing the NAS at the same time. It is nice to have, but in my view the main reasons for home users to consider the Pro is the generally faster CPUs and the longer warranty.Steve 46 wrote:4. Finally can someone offer any thoughts on the "Link Aggregation" feature using the two ethernet ports. Does this improve performance in a home use environment? Any other thoughts or tips relating to upgrading to a higher capacity NAS are appreciated.
Steve 46 wrote:Thank you for the informational replies. Stephen B, If I am understanding you correctly (regarding max expansion capacity to 14TB) if I load up all four 2TB drives now and do a drive wipe I will get 6TB capacity with the ability to remove those four 2TB drives and replace them with a combination of larger drives totaling 14TB (without having to do another factory default/wipe). Is that correct?
Steve 46 wrote:Regarding X-RAID, I understand that is the default single drive failure protection configuration. So if I have four drives loaded and one fails I would still retain all my data? I also understand that one drive is for parity information but not really understanding how one drive can protect the information on the three other drives. What if the parity drive fails?
Steve 46 wrote:I may have been asking about the wrong feature though. I was wondering why the Ultra 2/4 Plus units have two ethernet ports.
As mdgm explains, xraid-2 distributes the parity blocks. Though even if it did not, the parity blocks can be recomputed from the data blocks, as long as the data blocks are intact. Distributing parity blocks just evens out the reads and writes across the drives (which helps performance, and evens drive wear).Steve 46 wrote:Regarding X-RAID, I understand that is the default single drive failure protection configuration. So if I have four drives loaded and one fails I would still retain all my data? I also understand that one drive is for parity information but not really understanding how one drive can protect the information on the three other drives. What if the parity drive fails?
Steve 46 wrote:or is it expanding the volume to include the two new hard drives and keeping the data intact?
Steve 46 wrote:Frontview never gave me an option otherwise and I was afraid to open the setup wizard for fear that it would interrupt this restriping process.
Steve 46 wrote: I would like to ensure maximum expansion capacity as StephenB had mentioned and wanted to make sure what is happening now will allow for that or if I will need to actually do a factory default and wipe after this initial restriping process is completed. Bummer if that is the case because obviously you all know how long this takes. Also, the NAS drive still shows up in the Finder on my mac and shows all the shares I previously had setup on the Ultra 2 Plus. Is this normal?
The NAS creates a private share for each user. It doesn't show up in Frontview (which in m view is a mistake, as the admin should be able to manage all shares.)Steve 46 wrote:I also see a share created for Steve_C (that is my user name) even though there is no Steve_C share in the share listing in Frontview
I only use the built-in admin account. I cannot see the admin home share from FrontView at all, I can only access it from windows explorer.mdgm wrote:Not a mistake IMO.
You can go to Security > User & Group Accounts > Preferences and enable/disable private home shares. Private home shares are accessible by the user and the "admin" (Frontview) user only.
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