Category Archives: hardware

mdadm replace broken drive on Debian Jessie

If the drive should be replaced, then 1. start with determining which one is broken. See details of md device # mdadm –detail /dev/mdX # smartctl -a /dev/sdY  smartmontools required to be installed 2. replace required drive physically 3. See … Continue reading

Posted in Administration, hardware, Linux/Unix | Leave a comment

MiniSAS, MiniSAS HD, IPASS, SFF8087, SFF8643 example

Always need this information, decided to create post for it. CBL-SAST-0507-01 HD SAS -> mSAS(SFF8087) SFF8643 to SFF8087 Mini SAS Cable cable suits to rs2bl0x0 (miniSAS or ipass or sff8087) and hdsas backplane on supermicros cse-826be1c-r902lpb, like this one: https://www.supermicro.com/products/chassis/2U/826/SC826BE1C-R920LPB … Continue reading

Posted in Administration, hardware, Linux/Unix, windows | Leave a comment

ddrescue map file bad sectors position counting

If hdd failed and image recovered by ddrescue, might be necessary to know the failed sectors positions. For example hdd failed and recover by ddrescue /dev/sdd /dev/null /root/1tb.log –force log its content: # Rescue Logfile. Created by GNU ddrescue version … Continue reading

Posted in Administration, hardware, Linux/Unix | Leave a comment

Aligned advanced format partition creation using gparted under debian 6.0.7

This applies when new uninitialized drive used. parted (parted) print Error: /dev/sdb: unrecognised disk label (parted) mklabel gpt (parted) unit S (parted) mkpart Name ext3 2048 100% (parted) align-check optimal 1 1 aligned Then format must be performed and partition … Continue reading

Posted in Administration, hardware, Linux/Unix | Leave a comment