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Hi All,
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<div class="">Thanks for the excellent feedback. I’ve learned that:</div>
<div class=""><span class="Apple-tab-span" style="white-space:pre"></span>1)<span class="Apple-tab-span" style="white-space:pre">
</span>Raid Mirror can fail and requires proper management</div>
<div class=""><span class="Apple-tab-span" style="white-space:pre"></span>2)<span class="Apple-tab-span" style="white-space:pre">
</span>Clone the drive and use the clone</div>
<div class=""><span class="Apple-tab-span" style="white-space:pre"></span>3)<span class="Apple-tab-span" style="white-space:pre">
</span>Cloning software works, but not on all systems</div>
<div class=""><br class="">
</div>
<div class="">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.</div>
<div class=""><br class="">
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<div class="">Thanks,<br class="">
<div class="">
<div>Long Chang</div>
<div>Technical Director</div>
<div>UH Nanofabrication Facility</div>
<div>Houston, TX</div>
<div><a href="mailto:lvchang@central.uh.edu" class="">lvchang@central.uh.edu</a></div>
<div class=""><br class="">
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<blockquote type="cite" class="">
<div class="">On Feb 10, 2023, at 12:20 PM, Lino Eugene <<a href="mailto:lino.eugene@uwaterloo.ca" class="">lino.eugene@uwaterloo.ca</a>> wrote:</div>
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<span style="font-size: 11pt;" class="">Hi Long,<br class="">
<br class="">
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.<br class="">
<br class="">
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.<br class="">
<br class="">
Best,<br class="">
<br class="">
Lino Eugene, P.Eng., Ph.D.,<br class="">
Micro/nanofabrication process engineer<br class="">
Quantum-Nano Fabrication and Characterization Facility<br class="">
Office of Research<br class="">
QNC 1611<br class="">
University of Waterloo<br class="">
200 University Avenue West<br class="">
Waterloo, ON, Canada <br class="">
N2L 3G1<br class="">
<br class="">
Ph: +1 519-888-4567 #37788<br class="">
Cell: +1 226-929-1685<br class="">
Websites:<br class="">
<a href="https://urldefense.com/v3/__https://uwaterloo.ca/quantum-nano-fabrication-and-characterization-facility/__;!!LkSTlj0I!Fz_0sPyy-2VKRKid4LHDshzS9AC5Aabh_6fiQDmHUAKjJgU2Y-rpxmdhefSJI-8spE207wplrHg-KRcmSZYanOkxbidSbQ$" target="_BLANK" style="color: purple; text-decoration: underline;" class="">https://uwaterloo.ca/quantum-nano-fabrication-and-characterization-facility/</a><br class="">
<a href="https://urldefense.com/v3/__https://fab.qnc.uwaterloo.ca/__;!!LkSTlj0I!Fz_0sPyy-2VKRKid4LHDshzS9AC5Aabh_6fiQDmHUAKjJgU2Y-rpxmdhefSJI-8spE207wplrHg-KRcmSZYanOlLZfAVMQ$" target="_BLANK" style="color: purple; text-decoration: underline;" class="">https://fab.qnc.uwaterloo.ca/</a><br class="">
<br class="">
-----Message d'origine-----<br class="">
De : labnetwork <<a href="mailto:labnetwork-bounces@mtl.mit.edu" class="">labnetwork-bounces@mtl.mit.edu</a>> De la part de Chang, Long<br class="">
Envoyé : 9 février 2023 10:15<br class="">
À : Fab Network <<a href="mailto:labnetwork@mtl.mit.edu" class="">labnetwork@mtl.mit.edu</a>><br class="">
Objet : [labnetwork] HDD Best Practice<br class="">
<br class="">
Hi All,<br class="">
<br class="">
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?<span class="Apple-converted-space"> </span><br class="">
<br class="">
Thanks,<br class="">
Long Chang<br class="">
Technical Director<br class="">
UH Nanofabrication Facility<br class="">
Houston, TX<br class="">
<a href="mailto:lvchang@central.uh.edu" class="">lvchang@central.uh.edu</a><br class="">
<br class="">
<br class="">
<br class="">
<br class="">
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