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UID:pretalx-devconf-us-2026-EWG9CL@pretalx.devconf.info
DTSTART;TZID=EST:20260924T152000
DTEND;TZID=EST:20260924T164000
DESCRIPTION:Device Mapper is the invisible engine under your LVM volumes\, 
 your dm-crypt containers\, your thin pools\, and your multipath setup.\n\n
 You quite likely use it every day. But do you know it?\n\nThis is the one 
 where we open the bonnet: we'll cover dmsetup power moves — the low-leve
 l commands that let you inspect\, manipulate\, and sometimes terrify your 
 storage stack in ways the higher-level tools don't expose.\n\nWe'll dive i
 nto dmstats\, the criminally underused performance measurement framework t
 hat lets you track I/O at per-region\, per-object granularity and actually
  answer the question "where is my storage bottleneck?" And we'll look at d
 mpy\, a Python automation library that lets you drive all of this programm
 atically without shelling out to dmsetup like it's 2003.\n\nThe workshop w
 ill provide practical\, useful\, hands-on exercises that users can try out
  right away using provided VM images/KS files.\n\nNo prerequisites beyond 
 basic system admin skills.
DTSTAMP:20260727T174714Z
LOCATION:107 (Capacity 20)
SUMMARY:Everything You Always Wanted to Know About Device Mapper (But Were 
 Afraid to Ask) - Neal Gompa\, bmr.southpaw
URL:https://pretalx.devconf.info/devconf-us-2026/talk/EWG9CL/
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