https://freemwiki.com/index.php?action=history&feed=atom&title=Openai%2F696a9f9f-7fac-800b-8dd9-d6eb037f71e6 2026-05-04T17:12:55Z Revision history for this page on the wiki MediaWiki 1.43.3 https://freemwiki.com/index.php?title=Openai/696a9f9f-7fac-800b-8dd9-d6eb037f71e6&diff=595724&oldid=prev 2026-01-17T05:26:02Z

<p>by freem.ai...</p> <p><b>New page</b></p><div><br /> {{DISPLAYTITLE:RAID vs Backup}}<br /> <br /> &#039;&#039;This conversation was exported from ChatGPT&#039;&#039;&lt;ref&gt;{{cite web|title=RAID vs Backup|url=https://chatgpt.com/share/696a9f9f-7fac-800b-8dd9-d6eb037f71e6|publisher=ChatGPT|access-date=2026-01-17}}&lt;/ref&gt;<br /> <br /> == gpt-5-2 ==<br /> === User: is RAID a backup ===<br /> is RAID a backup<br /> <br /> === Assistant: No. ===<br /> No.<br /> <br /> RAID is not a backup. It is a high-availability and fault-tolerance mechanism, nothing more.<br /> <br /> Here is the plain reality:<br /> * What RAID does: Keeps a system online when a disk fails. It protects against single-disk hardware failure depending on the RAID level.<br /> * What RAID does not do: - It does not protect against accidental deletion - It does not protect against file corruption - It does not protect against ransomware - It does not protect against malware - It does not protect against user error - It does not protect against catastrophic failure (controller, PSU, firmware bugs, fire, theft) - It does not preserve historical versions<br /> <br /> If you delete a file, RAID deletes it faster across every disk.<br /> If ransomware encrypts your data, RAID faithfully mirrors the damage.<br /> If the filesystem corrupts itself, RAID preserves the corruption perfectly.<br /> <br /> That is why old-school storage admins have always said:<br /> <br /> : RAID protects uptime. Backups protect data.<br /> <br /> ===== What actually counts as a backup =====<br /> <br /> A real backup must meet at least these criteria:<br /> * A separate copy of the data<br /> * Stored on different media or system<br /> * Ideally offline or immutable<br /> * Supports versioning and point-in-time recovery<br /> <br /> Examples:<br /> * External drives rotated and disconnected<br /> * Another NAS with snapshot replication<br /> * Cloud backup with object locking<br /> * Tape (still used for a reason)<br /> <br /> ===== Correct mental model =====<br /> * RAID = seatbelt<br /> * Backup = spare life<br /> <br /> You want both. One does not replace the other.<br /> <br /> == References ==<br /> &lt;references /&gt;<br /> <br /> <br /> [[Category:ChatGPT Shares]]<br /> [[Category:openai]]</div>

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