From: Michael <mclaud@roznica.com.ua>
To: linux-bcachefs@vger.kernel.org
Subject: filefrag output
Date: Fri, 23 Feb 2024 07:25:50 +0200 [thread overview]
Message-ID: <ae2f2b23-da68-219c-1080-081ffe64ca9d@roznica.com.ua> (raw)
Can't find any information about
Are duplicates of logical extent offsets different replicas?
Are the replicas listed always sorted by number (first, second, third,
...) or in random order?
Where "replica 2" offset 448k ?
Is the physical offset the offset on the device? Which device id?
Example:
dd if=/dev/random of=tst.dat bs=512k count=1
filefrag -v -b1024 tst.dat output:
Filesystem type is: ca451a4e
File size of tst.dat is 524288 (512 blocks of 1024 bytes)
ext: logical_offset: physical_offset: length: expected: flags:
0: 0.. 63: 11856128.. 11856191: 64: encoded
1: 0.. 63: 16075264.. 16075327: 64: encoded
2: 64.. 127: 11856192.. 11856255: 64: 16075328: encoded
3: 64.. 127: 16075328.. 16075391: 64: 11856192: encoded
4: 128.. 191: 11856256.. 11856319: 64: 16075392: encoded
5: 128.. 191: 16075392.. 16075455: 64: 11856256: encoded
6: 192.. 255: 11856320.. 11856383: 64: 16075456: encoded
7: 192.. 255: 16075456.. 16075519: 64: 11856320: encoded
8: 256.. 319: 13653248.. 13653311: 64: 16075520: encoded
9: 256.. 319: 16383488.. 16383551: 64: 13653248: encoded
10: 320.. 383: 13653312.. 13653375: 64: 16383552: encoded
11: 320.. 383: 16383552.. 16383615: 64: 13653312: encoded
12: 384.. 447: 13653376.. 13653439: 64: 16383616: encoded
13: 384.. 447: 16383616.. 16383679: 64: 13653376: encoded
14: 448.. 511: 13653440.. 13653503: 64: 16383680:
last,encoded,eof
tst.dat: 14 extents found
--
Michael
reply other threads:[~2024-02-23 5:25 UTC|newest]
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