Current configuration of Cyclops Raid Array

Live Drives

Device Bracket Description Serial Firmware Warranty Until
sdc 7 HDWG460UZSVA 6TB 71A0A13QFA4H 0601 Tosh ~2025-05-01
sdf 8 HDWG460UZSVA 6TB 91W0A06JFA4H 0601 Tosh ~2025-05-01
sdh 2 ST6000VN006 6TB ZVX02R6K SC60 Seagate 2027-09-26
sdi 3 ST6000VN006 6TB ZVY05TKY SC60 Seagate 2027-09-26

Backup Drives

Device Bracket Description Serial Firmware Warranty Until
sd_   HD204UI 2TB S2HGJ1CZ904925    
sd_ backup510 HD501LJ 500GB S0MUJ1KP715582    
sd_ backup1, off-site HD204UI 2TB      
sd_ backup500, off-site ?? 500GB ??    
sd_ backup300, off-site, usb STBV3000200 3TB NA4KE2M3  
sd_ 6 HD203WI 2TB #S1UYJ1CZ317063[1][7] 1AN10003  
sd_ 1 DT01ACA300 3TB 84QE6EHGS TZ6 MX6OABB0  
sd_ 4 DT01ACA300 3TB 84QDMZ9GS TZ6 MX6OABB0   
sd_ 5 DT01ACA300 3TB Z4V4DZVGS TZ6 MX6OABB0 Scan 2017-11-04 RTB

Failed Drives

Device Bracket Description Serial Firmware Warranty Until
sd_ 0F ST3200542AS 2TB #9XW09GDN    
sd_ F WD30EFRX 3TB WCC4N6PT8RHR 1AN10003 WD 2019-01-16
sd_ F ST3200542AS 2TB #9XW08GNB    
sd_ F ST3000DM001 3TB #Z1F1K11M Dead  
sd_ 6F ST3000DM001 3TB #W1F1PG24 Dead  
sd_ F HD203WI 2TB S1UYJ1CZ317052 1AN10002  
sd_ F WD30EFRX 3TB WCC4N6SXZRHD 1AN10003 2021-12-01
sd_ 6 DT01ACA300 3TB Z4V4TR4GS TZ6 MX6OABB0 Scan 2017-11-04 RTB

Warranty Check

Toshiba : old, storrepair

Western Digital : https://westerndigital.secure.force.com/WarrantyCheck?lang=en

Setting TLER/CCTL

Set 70decisecond read and write error recovery control 

smartctl -l scterc,70,70 /dev/sdX

mdadm + LVM

Removing and Replacing a Failed Disk

http://www.ducea.com/2009/03/08/mdadm-cheat-sheet/ 

mdadm --remove /dev/md6 /dev/sdX   # remove failed disk
mdadm --add /dev/md6 /dev/sdX  # add replacement disk
sysctl dev.raid.speed_limit_max=51200  # limit speed to ~50MB/sec

Extending the filesystem

lvextend --resizefs --size +256GB /dev/vg-md6/media

btrfs

Disabling Copy On Write

Existing files must be copied in to a nodatacow directory.

mkdir /mnt/systems/vms
chattr +C /mnt/systems/vms
rsync -av /mnt/systems/vms-old/ /mnt/systems/vms/

Log

  • 2013-12-10: Removed failed 2TB sde. Replaced with 500GB backup.
  • 2014-03-20: Moved backup HD204UI into array in place of shrunken HD203WI
  • 2014-07-02: Errors on sde (9XW...). 108 sectors newly reallocated
  • 2015-11-06: Two more Tosh 3TB to replace dead Seagate 3TB
  • 2021-12-01: One WD 3TB failed
  • 2022-05-10: Added 2x Toshiba 6TB (half-capacity)
  • 2024-10-04: Added 2x Seagate Ironwolf 6TB
  • 2024-11-14: Migrated to btrfs RAID10 with 4×6TB disks, see Network/RaidUpgrade2024

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