On Sun 25 Aug 2019 at 06:20:34 (-0500), Richard Owlett wrote: > On 08/24/2019 06:30 PM, bw wrote: > > In-Reply-To: <6467de81e00f9aafac5c25a0c60b1...@contacte.xyz>
> > > When it's time to partition/format the drive one can choose the ??usage?? > > > of the partition which affect the Inodes. > > > > > > There is : > > > > > > -Typical usage??? (which is ???standard??? by default) > > > - "News??? (lots of inodes), > > > - ???largefile??? (fewer inodes), > > > - ???largefile4??? (even fewer inodes) > > > > > > What would be the ??best?? to choose for an SSD in an usual desktop > > > environment ? What would be the ??best?? to choose for an mechanical HD in > > > an usual desktop environment ? > > > > > > Files system is EXT4. > > > > I have a link/url. I would think default 'Typical Usage' is best unless > > you need to choose another option. It's an interesting question, thanks! > > > > https://duckduckgo.com/html/?q=debian+installer+inode+largefile4 > > > > Thanks for the link -- prompted thinking. > One of thoughts was I probably know less about disk details than I > thought. [I date from 8" floppies and 14" HD platters with a few MB ;] > > How do I search for answer to my inadequately phrased question below. > 1. I assume that sector size is a _TERM_ reserved for something fixed > when the disk is manufactured. > 2. What is the proper search term to use for something whose dimensions > would be "megabytes/inode"? {I'll use "blob" for now } > 3. The references I skimmed were focused pretty much on "disk full" > meaning either running out of "inodes" or "physical bytes on disk". It sounds as if you're thinking of FAT filesystems and their use of "clusters", the multiple-sector units of File Allocation, whose size relates to the minimum size of the smallest file and the maximum number of files in the volume. So in a FAT fs, you can run out of . overall space, . unallocated clusters for any new file, . unfragmented space for a large new file, . spare entries in the top-level directory. > the question: > How find discussion of > blob size v file fragmentation [cf head seeks in spinning rust] > blob size v wear problems on SSD [unclear how that's handled now] > blob size v parameters such as bs when using dd [lousy example] > What else should I be asking <smile> > [see what happens when septuagenarian caused to think before coffee ;] > TIA For nostalgia: https://en.wikipedia.org/wiki/File_Allocation_Table then https://en.wikipedia.org/wiki/Design_of_the_FAT_file_system For users like us, maybe start at: https://en.wikipedia.org/wiki/Extended_file_system continuing through https://en.wikipedia.org/wiki/Ext2 https://en.wikipedia.org/wiki/Ext3 https://en.wikipedia.org/wiki/Ext4 But I wouldn't want to distract you from connecting your machines, or petitboot, or VMs. Cheers, David.
