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2009-04-17 11:00 AM
2009-04-17 11:09 AM
2009-04-17 02:54 PM
2009-04-17 04:35 PM
bollar wrote: Do the hotswap. No reason to bring the NAS down to replace the drive. Just follow the prompts on the NAS' display carefully as you go.
2009-04-18 03:32 AM
2009-04-18 05:35 AM
2009-04-18 08:17 AM
nvladik wrote: You are doing fine, let it finish, it will tell you when it's ready.
1397GB is also correct.
2009-04-19 04:38 AM
2009-04-19 05:19 AM
2009-04-19 12:54 PM
2009-04-20 04:46 AM
2009-04-21 04:41 AM
2009-04-21 06:11 AM
2009-04-21 06:55 AM
nvladik wrote: - no prior warnings of estimated time required to complete expansion time
A bit hard to calculate it. It is estimated int he volumes section of front view, but I noticed myself that the time changes as the speed goes down. My initial estimate was 12 hours, 12 hours later I still have 8 to go.
Unfortunately, that is incorrect. The estimated time provided is for sync only. During expansion it only indicates % complete but even that is misleading as it goes through an expansion process no less than 3 times, each with extremely different intervals (4 hrs, 30 seconds, 49 hours). Again, this is undocumented which does not provide any advance planning opportunities.
- no prior warning that system would be unavailable during expansion process. The Jedia Council is indicating that NAS systems with a factory default firmware of 4.x or greater will do an expansion online (your system remains available). My documentation or any warnings 'before continuing' did not indicate this to me.
My system remained online, strange.
As mentioned, 'Skywalker' informed me that this depends upon the firmware installed at initial system default configuration. Again, not documented to my knowledge.
- no recommendations from Netgear as to how to approach a system upgrade/expansion (eg., should I replace one drive at a time, complete initializaiton, synchronization & expansion then move to next drive, or replace all intended drives - in my case 4 - and then do expansion)
I see your point, but I think your experience is such since this is the first time you are doing it. I think it's pretty well known with NAS and HotSwap RAID systems how to approach drive changes.
HOT SWAP to me means just that. I can swap drives without downtime. If I have to lose the system for 53 hours while it is doing an expansion this is not truly 'hot swap'. The expansion should be done online and if it doesn't for particular units / configurations, we should know this.
- drive 4 failed the sync process shortly after initalization was complete. I removed the drive and reinserted. It immediately skipped the initiazliation process and appeared to successfully complete the sync process thereafter.
Not sure what to say here, I would keep close look at the SMART data of this drive. Could be the drive, could be a bad connection with the NAS.
That is what I suspected when I removed and reinstalled.
In this entire thread there has not been any responses from the forum reps. 'Skywalker' has responded to PMs for assistance. However, for the benefit of the greater community, I would request that Netgear provide a response to this summary, my concerns and commit to improvements in documentation.
This NAS is for home use and serving my home media distribution. As such, it isn't mission critical from a business perspective. However, if this had been in a business environment, had this been tax time and I needed access to my data I would be thoroughly concerned and disappointed that the system was unavailable for the duration of the expansion process with no warning - and, no indication of how long that might take. There is some algorithm used to determine how long the initialization / sync process takes as repoted in the logs. They should be able to determine how long the sync process should take. 53 hours is a long time to be without a system in any circumstance.
I hope this information helps someone. Please feel free to PM or email me with any questions or need for any detail. I will continue to report here should the logs indicate any additional warnings or failures.
Sure does, I think this is a great log.
2009-04-22 05:04 AM
2009-05-20 07:05 AM
SteinyD wrote: For the record and hopefully for the benefit of someone expanding their system in the future, it took a total of Friday at 18:33-22:46 for Disk 1, Sat 06:13-14:37 for disk 2, Sat at 18:05-Sun 02:27 for disk 3, Sun 7:54-19:13 for disk 4. The expansion process took from Sat at 20:46-Tues at 01:55.
Here are my timings from the logs. Times are rounded to nearest 1/4 hour. The time per disk is from removal of former 750GB drive, insertion of new 1.5TB drive and time until the system was reported as redundant (initialization and sync complete). The expansion process is indicated as the time following the system reporting it was redundant after the 4th drive replacement and until I had the system back and it was reported as fully expanded.
Disk 1 - 9 1/4 hours
Disk 2 - 10 1/2hrs
Disk 3 - 8 1/2 hours
Disk 4 - 12 hrs
Expansion - 53 hrs
SYSTEM UNAVAILABLE - 53 HOURS (unacceptable)
TOTAL ELAPSED TIME TO COMPLETE 4 DRIVE REPLACE / EXPANSION: 93 1/4 hours
Total available space on 4 - 1.5TB drives = 4114 GB
2009-05-20 08:45 AM
2009-05-22 12:09 PM
btaroli wrote: Something to keep in mind regarding firmware release and online expansion. It's not just a question of what release you have installed, but what version was installed when the X-RAID volume was originally created. In particular, if you were running RAIDiator 3.x (or earlier) when initially installing your ReadyNAS and then later upgraded to 4.x... you do NOT automatically get the benefit of some of the volume changes that 4.x supported -- block size and online expansion.
To get the extra benefits, you would have to perform a FACTORY RESET (completely wiping and re-creating the X-RAID volume, and requiring you to restore your data) in order to accomplish that.
I lucked out, I guess, and 4.x happened very soon after I got my NV+ in 12/2007. When the time came for me to expand (4x500 to 4x1.5T), I did have to do a few restarts but the NV+ otherwise was available for use during the entire process.
I agree with the frustration that this is not well documented in product manuals or very visible in the web site... but if you search the forums regarding online expansion you will see the discussion of this topic come up repeatedly.
2009-05-22 12:43 PM
btaroli wrote: To get the extra benefits, you would have to perform a FACTORY RESET (completely wiping and re-creating the X-RAID volume, and requiring you to restore your data) in order to accomplish that.
Having now expanded once with a new firmware installed, is my new X-RAID volume still 'old style' and further expansion will also be offline? Or has this expansion process converted me to the latest firmware/volume type?
2010-05-24 12:55 AM
2010-05-24 01:43 AM
2011-09-06 05:33 AM