On 08/25/2019 08:09 PM, David Wright wrote:
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
Definitely "Memory Lane". A little more than 40 years ago I worked on a
system with an early 8" floppy. It probably predated FAT8.
As to inodes, just came across https://en.wikipedia.org/wiki/Inode .
It's 1AM, time to call it a day ;/
But I wouldn't want to distract you from connecting your machines,
or petitboot, or VMs.
Petitboot and VMs definitely back burner.
Now pursuing UUCP for "connecting" my machines. There are more modern
ways but it suits my needs/desires/viewpoint ;}
Cheers,
David.
