PMDAGPFS(1)

💅 PMDAGPFS — bestie edition

okay so this is the manual page for pmdagpfs, a Performance Metrics Domain Agent (PMDA) — and no, we are not skipping the intro, sit down, hydrate, it's giving main character energy.

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✨ NAME ✨

pmdagpfs — the gpfs filesystem statistics performance metrics domain agent (PMDA). that's it, that's the whole name, and honestly? iconic. 🎀

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🌸 DESCRIPTION 🌸

so like, pmdagpfs is a Performance Metrics Domain Agent (PMDA) — and what does a PMDA do, you ask? it exports metric values, bestie. that's the whole job. 💖

this specific one pulls those metric values out of the /usr/lpp/mmfs/bin/mmpmon program, so you get the tea ☕ on your mounted gpfs filesystems. literally just filesystem statistics, served fresh, no cap.

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🦋 INSTALLATION 🦋

wanna install the gpfs PMDA? okay so you gotta do it as root (yes, root, the actual boss 👑) using the Install script:

# cd $PCP_PMDAS_DIR/gpfs
# ./Install

and when you're done with it and wanna uninstall? as root, again:

# cd $PCP_PMDAS_DIR/gpfs
# ./Remove

now listen, this part is important, don't skip it:

pmdagpfs is launched by pmcd(1) and should never be executed directly. like, ever. don't do it. not even once. 🙈

the Install and Remove scripts are the ones doing the communicating — they notify pmcd(1) when the agent gets installed or removed. they're the group chat mods of this whole operation, fr fr. 🫶

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🍓 FILES 🍓

• $PCP_PMDAS_DIR/gpfs/Install — the installation script for the pmdagpfs agent ✨
• $PCP_PMDAS_DIR/gpfs/Remove — the undo installation script for the pmdagpfs agent (the "jk, take it back" button) 💅
• $PCP_LOG_DIR/pmcd/gpfs.log — the default log file where pmdagpfs drops its error messages. this is where it vents, lowkey. 😭

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🌈 PCP ENVIRONMENT 🌈

okay so here's the vibe: environment variables with the prefix PCP_ are what parameterize the file and directory names that PCP uses. basically they're the settings menu, iykyk.

every time you install, the file /etc/pcp.conf holds the local values for all these variables. 📁

and if you wanna get spicy with it — the $PCP_CONF variable can be used to point at an alternative configuration file instead. fancy. as described in pcp.conf(5), which is your required reading, bestie. no skipping. ⭐

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💜 SEE ALSO 💜

• PCPIntro(1)
• pmcd(1)
• mmpmon(8)

go read those next, you're doing amazing sweetie 🧚

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and that's the whole page, periodt. 💖✨

this was brought to you by Performance Co-Pilot, rocking the PCP version tag, dated in that classic manual page way — mwah, slay, no notes. 🎀🔥