I'm still 6 to 18 months away from purchasing a new laptop, but before I do I am keen to learn whether it is worth purchasing an SD card 'drive' for Linux in the laptop. Indeed I could also consider the use of such an SD device on a desktop PC ....
What are the experiences of our openSUSE users ? any tidbits to offer ? any hints our users have ? ... or simply are there any pieces of basic information to put forward that those of us who don't have such a device would never consider ?
I noted an article here: How to tweak Linux to run reliably on flash memory? - Unix and Linux - Stack Exchange about tweaking linux for using such SD card devices in place of one's hard drive.
Suggestions such as placing /var , /home on a separate internal hard drive (or even on an external drive) were proposed. Another suggested putting /tmp on an internal (or external) drive, or even finding a way to mount /tmp into RAM. The reason being is there are a limited number of erase-cycles/writes for an SD card, so the intention is to maximum the SD card life by putting writes for some directories to a different device.
Plus for ext3 I noted this sugestion:
Which of our users use such a device and what can you recommend ?Under ext3, the journal is the most frequently written file, and those writes will eventually fill a block, forcing the erase of another block. Setting a larger commit= value on mount would gather these journal writes into larger chunks.
Finally, to echo other solutions, mounting with noatime is a standard practice that will reduce impact.
I recall there was at least one previous thread on this subject where some of our users posted some information, but I can't find that thread !