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There are not SSDs with TRIM support available in my region that fit into my laptop (1.8", IDE, ZIF). I'm running Ubuntu 10.10.

Most articles (or questions on superuser) I've come across concering TRIM (or the lack thereof) date back to 2009, when not many SSDs with TRIM support were available and OS support was still very fresh.

I'm interested in the current situation, but I couldn't find too much information about it.

  • What are currently the "best practices" for using an SSD without TRIM under Linux?
  • I've read about the wiper script included with hdparm. Do I understand correctly that I could use this to free unused blocks, e.g. by running it once a month?
  • Some sources state that HFS+ (the default-filesystem of Mac OS X) doesn't suffer as badly from lack of TRIM as other filesystems. How about linux filesystems? Are there filesystems that are better suited for SSDs without TRIM than others?
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Consider getting an SSD that has proper garbage collection, if possible. Online reviews generally also test for performance of a used drive without TRIM. – Daniel Beck Mar 31 '11 at 7:37
Thanks. Problem is that there's only one suitable SSD available where I live, the 1.8" PATA MX-NANO ZIF SSD. – pableu Mar 31 '11 at 8:19
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Consider using ext4 with the journal disabled. See this Ubuntu Forums thread: http://ubuntuforums.org/showthread.php?t=1109698. Also, mount with the noatime option so that the last access time is not written on every access.

Note that wiper cannot be used because wiper requires TRIM.

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