<div dir="ltr"><div class="gmail_default" style="font-family:garamond,times new roman,serif">Hi David,</div><div class="gmail_default" style="font-family:garamond,times new roman,serif"><br></div><div class="gmail_default" style="font-family:garamond,times new roman,serif">With both of our K3 cameras, we have gone through the same process. Gatan provided the servers with ~8TB Raid0 disks, which on the Krios promptly failed, so we got them changed to an array of 20 2TB SSD disks in a Raid5 configuration. No problems with writing to them at all, even when the microscope is collecting ~800 images/hr and simultaneously moving them to our storage server.</div><div class="gmail_default" style="font-family:garamond,times new roman,serif"><br></div><div class="gmail_default" style="font-family:garamond,times new roman,serif">Ruben.</div><div class="gmail_default" style="font-family:garamond,times new roman,serif"><br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Thu, Feb 29, 2024 at 3:00 PM Morgan, David Gene <<a href="mailto:dagmorga@indiana.edu">dagmorga@indiana.edu</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div class="msg5296697083581332860">
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Hi,</div>
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We had an issue with a disk in the RAID array on our K3 last week. It fortunately turned out to be a non-fatal error, but it did make me realize that this is a RAID0 array and that a real disk error could result in troublesome loss of data.<br>
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I asked a Gatan engineer who is here installing a system on a new microscope about switching to RAID5 or RAID6. His comment was that company policy is RAID0 only, but that he didn't see any reason other than a loss in write speed that could result from switching
RAID type.</div>
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Has anyone changed the RAID on a Gatan computer to something else, and if so, have you had any issues?</div>
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Thanks in advance.<br>
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<div style="margin:0px;font-family:Calibri,Arial,Helvetica,sans-serif"><span style="font-size:12pt;color:rgb(0,0,0)">-- </span></div>
<div style="margin:0px;font-family:Calibri,Arial,Helvetica,sans-serif"><span style="font-size:12pt;color:rgb(0,0,0)"> politics is more difficult than physics.</span></div>
<div style="margin:0px;font-family:Calibri,Arial,Helvetica,sans-serif"><span style="font-size:12pt;color:rgb(0,0,0)"> A. Einstein</span></div>
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<div style="margin:0px;font-family:Calibri,Arial,Helvetica,sans-serif"><span style="font-size:12pt;color:rgb(0,0,0)"> David Gene Morgan<br>
Electron Microscopy Center<br>
047E Simon Hall<br>
IU Bloomington<br>
812 856 1457 (office)<br>
812 856 3221 (3200)<br>
<a href="https://urldefense.com/v3/__http://iubemcenter.indiana.edu__;!!Mih3wA!HV1p7q8MKM90aKMVu_thfmzPEZhCpnNSu2mSsEobLxBK-wFl1HMD93m6ng71u3LxL3bVhcQ4rn7F5N8s6icWnzw$" target="_blank">http://iubemcenter.indiana.edu</a></span></div>
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</div></blockquote></div><br clear="all"><div><br></div><span class="gmail_signature_prefix">-- </span><br><div dir="ltr" class="gmail_signature"><div dir="ltr"><div>**********************************************</div>Ruben Diaz Avalos,<div>La Jolla Institute for Immunology,</div><div>9420 Athena Circle Dr.,</div><div>La Jolla, CA 92037</div><div>(858)752-6960</div><div>**********************************************</div></div></div>