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Marin,</div>
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Their argument is indeed speed, but it raises the question of whether the drop in speed is significant or not. That was why I was asking about the experiences of people who might have tried this.<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!CVzCzG5A7RQhL67-8HLUSblVLI7iyjMciQ7CznlSytGavMYkXi3y_0H041vTj8xwdq1hFTyH9JAnMBvoHT4ORdg$">http://iubemcenter.indiana.edu</a></span></div>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> Marin van Heel <marin.vanheel@gmail.com><br>
<b>Sent:</b> Thursday, February 29, 2024 6:12 PM<br>
<b>To:</b> Morgan, David Gene <dagmorga@indiana.edu><br>
<b>Cc:</b> 3dem@ncmir.ucsd.edu <3dem@ncmir.ucsd.edu><br>
<b>Subject:</b> [External] Re: [3dem] RAID question for K2/K3 users</font>
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This message was sent from a non-IU address. Please exercise caution when clicking links or opening attachments from external sources.</div>
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<div dir="auto">Dear David
<div dir="auto">The reason for a RAID-0 rather a RAID-5 is undoubtedly the higher I/O speed and not primarily a matter of company policy...</div>
<div dir="auto">Cheers</div>
<div dir="auto">Marin</div>
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<div dir="ltr" class="x_gmail_attr">On Thu, 29 Feb 2024, 20:00 Morgan, David Gene, <<a href="mailto:dagmorga@indiana.edu">dagmorga@indiana.edu</a>> wrote:<br>
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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
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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>
<div style="margin:0px; font-family:Calibri,Arial,Helvetica,sans-serif"><span style="font-size:12pt; color:rgb(0,0,0)"><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)"> 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" rel="noreferrer">
http://iubemcenter.indiana.edu</a></span></div>
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