Skip to content
View in the app

A better way to browse. Learn more.

Unraid

A full-screen app on your home screen with push notifications, badges and more.

To install this app on iOS and iPadOS
  1. Tap the Share icon in Safari
  2. Scroll the menu and tap Add to Home Screen.
  3. Tap Add in the top-right corner.
To install this app on Android
  1. Tap the 3-dot menu (⋮) in the top-right corner of the browser.
  2. Tap Add to Home screen or Install app.
  3. Confirm by tapping Install.

[SOLVED] Parity Sync Slow

Featured Replies

Hi all, 

I'm new in unraid world. It's my first setup, my hardware is brand new. I've added 2 disks for parity, but the initial setup take way to long...

 

Any idea why ?

thx for your help

 

parity.png

 

Edited by N47H4N

Solved by Kilrah

  • N47H4N changed the title to Parity Sync Slow
  • Community Expert
  • Solution

Your syslog is full of read errors from disk1.

 

Jul 30 09:39:11 URNAS01 kernel: blk_update_request: I/O error, dev sdc, sector 1088 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 0
Jul 30 09:39:11 URNAS01 kernel: sd 3:0:0:0: [sdc] tag#294 UNKNOWN(0x2003) Result: hostbyte=0x00 driverbyte=DRIVER_OK cmd_age=5s
Jul 30 09:39:11 URNAS01 kernel: sd 3:0:0:0: [sdc] tag#294 Sense Key : 0x3 [current] 
Jul 30 09:39:11 URNAS01 kernel: sd 3:0:0:0: [sdc] tag#294 ASC=0x11 ASCQ=0x0 
Jul 30 09:39:11 URNAS01 kernel: sd 3:0:0:0: [sdc] tag#294 CDB: opcode=0x28 28 00 00 1d 2c 40 00 04 00 00
Jul 30 09:39:11 URNAS01 kernel: blk_update_request: critical medium error, dev sdc, sector 1912512 op 0x0:(READ) flags 0x0 phys_seg 48 prio class 0
Jul 30 09:39:11 URNAS01 kernel: md: disk1 read error, sector=1912448
Jul 30 09:39:11 URNAS01 kernel: md: disk1 read error, sector=1912456
Jul 30 09:39:11 URNAS01 kernel: md: disk1 read error, sector=1912464

 

Check connection/power/change SATA cable... What's the machine set up like? 

  • Author

Hi Kilrah,

 

thx for your answer. Do you think the disk1 can have an impact on the parity sync ? 

my hardware is here:

 

power/sata cable are new. I don't have others to test it for the moment. 

 

maybe I misconfigured my pcie card ?

  • Community Expert

Looking at SMART that disk has some reallocated sectors and high read error rate, so it might be failing...

 

1 minute ago, N47H4N said:

Do you think the disk1 can have an impact on the parity sync ? 

 

All drives need to be read in their entirety to build parity, so if one has issues and hangs for a while before reading each sector it definitely will be crawling.

 

IMO that drive should not be put in the array, but backed up separately and replaced.

  • Author

you are right ! thx ! it's way better now... it was that simple. sorry for the question and thx again !

  • N47H4N changed the title to [SOLVED] Parity Sync Slow

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

Account

Navigation

Search

Search

Configure browser push notifications

Chrome (Android)
  1. Tap the lock icon next to the address bar.
  2. Tap Permissions → Notifications.
  3. Adjust your preference.
Chrome (Desktop)
  1. Click the padlock icon in the address bar.
  2. Select Site settings.
  3. Find Notifications and adjust your preference.