Jakosaur Posted October 7, 2019 Share Posted October 7, 2019 Hello, Just asking for some confirmation to whether I've understood this correctly before proceeding. Currently got a 2TB drive as my Parity, looking to upgrade it to 4TB so I can later down the line increase the size of my data disks. Turn server off Disconnect old parity drive Connect new parity drive Turn server on Select new parity drive in parity slot that shows the missing drive Guessing when starting the array it'll say / do a rebuild? Hope I haven't missed anything, but just asking for confirmation to whether I've understood correctly + any tips or steps other people recommend before & after. Thanks in advance 🙂 Quote Link to comment
wreck Posted October 7, 2019 Share Posted October 7, 2019 Yep, those are the basic steps. I would also recommend saving a screen shot of your working config before you make any changes and probably backing up your flash drive (always a good idea) before doing anything, just in case. Have you precleared the new drive? This isn't needed from a formatting standpoint, since it will be the parity drive, but it's a good stress test on a new drive. Also, you are right about #6, when you restart things, unraid will need to rebuild parity onto the new drive. 1 Quote Link to comment
JonathanM Posted October 7, 2019 Share Posted October 7, 2019 Parity check before and after the operation is completed. In either case anything other than 0 errors is an immediate show stopper. Also, check the smart reports on all drives before and after. 1 Quote Link to comment
Jakosaur Posted October 7, 2019 Author Share Posted October 7, 2019 (edited) @buxton & @jonathanm thanks for replying! On 10/7/2019 at 2:09 PM, buxton said: I would also recommend saving a screen shot of your working config before you make any changes Would you mind expanding on what is the "working config"? Web UI main tab? Thanks On 10/7/2019 at 2:09 PM, buxton said: Have you precleared the new drive? Currently in the process of that! 🙂 Pre-Clear / Stress Test New Parity Drive (Optional) Screenshot Current Config Parity Check Check Smart Reports Backup Flash Drive Turn Server Off Disconnect Old Parity Drive Connect New Parity Drive (if not already connected for pre-clear) Turn Server On Select New Parity Drive in Parity Slot that Shows the Missing Drive Start the Array & Parity-Sync and / or Data-Rebuild Parity Check Check Smart Reports Thanks again for the help! Edited November 24, 2019 by Jakosaur Quote Link to comment
wreck Posted October 7, 2019 Share Posted October 7, 2019 Yes, just a screen shot of the main tab in the web UI before you make any changes. I used "working config" to mean a known good state of everything, sorry for the confusion. Also, the parity check before and after as mentioned by @jonathanm is critical. 1 Quote Link to comment
Jakosaur Posted October 7, 2019 Author Share Posted October 7, 2019 (edited) 1 minute ago, buxton said: Yes, just a screen shot of the main tab in the web UI before you make any changes. I used "working config" to mean a known good state of everything, sorry for the confusion. Also, the parity check before and after as mentioned by @jonathanm is critical. Thanks! Added the suggestions from you two into the steps, in my previous comment. Appreciate the help from both of you! 🙂 Edited October 7, 2019 by Jakosaur Quote Link to comment
Jakosaur Posted October 7, 2019 Author Share Posted October 7, 2019 30 minutes ago, jonathanm said: Also, check the smart reports on all drives before and after. I found this online whilst looking up how to replace the parity drive. Are these the only things to look at on the Smart Report? Quote You are basically looking for Attributes #5, 196, 197, 198, and 199 to be all zeros. Quote Link to comment
JonathanM Posted October 7, 2019 Share Posted October 7, 2019 2 minutes ago, Jakosaur said: Are these the only things to look at on the Smart Report? Because manufactures can't be bothered to be consistent with how they use and format SMART, reading the reports is a cross between analysis and divination. If you come across something that looks off to you, attach the report and ask for help interpreting it. 1 Quote Link to comment
Squid Posted October 7, 2019 Share Posted October 7, 2019 17 minutes ago, Jakosaur said: Are these the only things to look at on the Smart Report? And, any attribute which is listed as FAILING NOW 1 Quote Link to comment
Jakosaur Posted November 17, 2019 Author Share Posted November 17, 2019 Got 2 more 4TB drives on the way. Will be upgrading 2x 1TB data drives and upgrading them both to 4TB. Anyone able to help with the steps required for that? Are they similar to the steps above for a Parity Drive upgrade? Maybe not? Any help will be appreciated 🙂 Quote Link to comment
JonathanM Posted November 17, 2019 Share Posted November 17, 2019 5 hours ago, Jakosaur said: Are they similar to the steps above for a Parity Drive upgrade? Pretty much identical. Just substitute Data Drive for Parity Drive in every applicable step. Also step 12 should be a non-correcting parity check when replacing a data drive. If you are absolutely confident in the health of all your current drives and you already have the serial numbers recorded, you could skip steps 2,3,4,5, but it doesn't hurt to be sure everything is still healthy. IF you currently have 2 parity drives you could theoretically do both upgrades simultaneously, but that adds another level of risk, and I suspect from the tone of this thread that you are more than happy to do the extra legwork and take the time to be as safe as you possibly can. 1 Quote Link to comment
Jakosaur Posted November 18, 2019 Author Share Posted November 18, 2019 (edited) On 11/17/2019 at 10:36 PM, jonathanm said: Pretty much identical. Just substitute Data Drive for Parity Drive in every applicable step. Also step 12 should be a non-correcting parity check when replacing a data drive. If you are absolutely confident in the health of all your current drives and you already have the serial numbers recorded, you could skip steps 2,3,4,5, but it doesn't hurt to be sure everything is still healthy. IF you currently have 2 parity drives you could theoretically do both upgrades simultaneously, but that adds another level of risk, and I suspect from the tone of this thread that you are more than happy to do the extra legwork and take the time to be as safe as you possibly can. Thanks for that information! Pre-Clear / Stress Test New Data Drive (Optional) Screenshot Current Config Parity Check with `Write corrections to parity` enabled Check Smart Reports Backup Flash Drive Turn Server Off Disconnect Old Data Drive Connect New Data Drive (if not already connected for pre-clear) Turn Server On Select New Data Drive in Data Slot that Shows the Missing Drive Start the Array with Parity-Sync and / or Data-Rebuild Parity Check without `Write corrections to parity` enabled Check Smart Reports ^ Hopefully that looks alright! Currently only have 1 parity drive, but as you say I'm happy to do the extra work/time to be safe. 🙂 Edited November 24, 2019 by Jakosaur Quote Link to comment
Jakosaur Posted November 21, 2019 Author Share Posted November 21, 2019 Drives arrived yesterday. Putting the 1st one through a pre-clear now. Hopefully the steps above look alright! 🙂 Quote Link to comment
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