[labnetwork] HDD Best Practice

[Chang, Long]

Hi All,

Thanks for the excellent feedback. I’ve learned that:
1) Raid Mirror can fail and requires proper management
2) Clone the drive and use the clone
3) Cloning software works, but not on all systems

Spoke with our IT guys and they did not recommend cloning over Raid Mirror because some security stuff doesn’t get cloned. The most likely scenario for our incident is that Drive 0 (master) got corrupted, Drive 1 mirrored and got corrupted, then Drive 0 failed. To keep our IT guys happy, we will do Raid Mirror and clone both drives. Use the cloned drives and store the original.

Thanks,
Long Chang
Technical Director
UH Nanofabrication Facility
Houston, TX
lvchang at central.uh.edu<mailto:lvchang at central.uh.edu>



On Feb 10, 2023, at 12:20 PM, Lino Eugene <lino.eugene at uwaterloo.ca<mailto:lino.eugene at uwaterloo.ca>> wrote:

Hi Long,

Most of our computers are connected to a Synology NAS with RAID 1 configuration in a private network. The Synology software Active to Backup Business does back up the Windows 7 and 10 computers and Macrium Reflect is used for Windows XP. Backups are run weekly and several versions are kept for few months. We also have an offline backup of the NAS.

When a hard drive fails, a new one is installed and the computer can be booted from a recovery media and connects to the NAS to recover a backup. This has saved us from long downtimes few times.

Best,

Lino Eugene, P.Eng., Ph.D.,
Micro/nanofabrication process engineer
Quantum-Nano Fabrication and Characterization Facility
Office of Research
QNC 1611
University of Waterloo
200 University Avenue West
Waterloo, ON, Canada
N2L 3G1

Ph: +1 519-888-4567 #37788
Cell: +1 226-929-1685
Websites:
https://uwaterloo.ca/quantum-nano-fabrication-and-characterization-facility/<https://urldefense.com/v3/__https://uwaterloo.ca/quantum-nano-fabrication-and-characterization-facility/__;!!LkSTlj0I!Fz_0sPyy-2VKRKid4LHDshzS9AC5Aabh_6fiQDmHUAKjJgU2Y-rpxmdhefSJI-8spE207wplrHg-KRcmSZYanOkxbidSbQ$>
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-----Message d'origine-----
De : labnetwork <labnetwork-bounces at mtl.mit.edu<mailto:labnetwork-bounces at mtl.mit.edu>> De la part de Chang, Long
Envoyé : 9 février 2023 10:15
À : Fab Network <labnetwork at mtl.mit.edu<mailto:labnetwork at mtl.mit.edu>>
Objet : [labnetwork] HDD Best Practice

Hi All,

Yesterday we experienced a HDD failure for our AFM. This event should have been prevented by the Raid Mirror with 2 HDD. Our setup where we just have a single working drive and a spare backup clone has been more successful. We are planning to move away from Raid Mirror. Anyone has expertise/experience here they can share?

Thanks,
Long Chang
Technical Director
UH Nanofabrication Facility
Houston, TX
lvchang at central.uh.edu<mailto:lvchang at central.uh.edu>




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