VDOLISTMETADATA(8)

💖 VDOLISTMETADATA 💖

okay bestie, so this one lives in the System Manager's Manual (section 8, the big-girl sysadmin section, iykyk) and it's literally called vdolistmetadata. No cap, that's the whole name. Let's get into it. 🦋

✨ NAME ✨

vdolistmetadata — list the metadata regions on a VDO device 👑

🌸 SYNOPSIS 🌸

vdolistmetadata filename

🎀 DESCRIPTION 🎀

so what does she DO? vdolistmetadata lists the metadata regions of a VDO device, and it hands them to you as ranges of block numbers. That's the whole vibe. 💅

Every single range gets its own line, and the format is exactly this:

startBlock .. endBlock: label

and listen — both endpoints are included in the range, okay? Like, startBlock and endBlock are both in there, no sneaky exclusive-end nonsense. And those endpoints are the zero-based indexes of 4KB VDO metadata blocks on the backing device. 4KB. Zero-based. Remember it. 🧚

Oh and also, filename has to be the path of the VDODataLV, as described over in lvmvdo(7). That's the assignment, bestie, don't freestyle it. 🌈

💜 OPTIONS 💜

• --help — prints this help message and then dips out. exit stage left. 🚪
• --version — shows you the version of vdolistmetadata. that's it, that's the whole job. ⭐

🍓 EXAMPLE 🍓

here's the little routine, step by step, in order, no skipping:

# lvchange -ay vdo1/vdo0pool_vdata
# vdolistmetadata /dev/mapper/vdo1-vdo0pool_vdata
# lvchange -an vdo1/vdo0pool_vdata

activate it, peek at the metadata, deactivate it. in and out, clean, iconic. 😭🔥

👑 SEE ALSO 👑

lvmvdo(7), lvchange(8)

like obviously go read those too, they're the supporting cast and they ate. 🫶

lowkey reminder: this is the System Manager's Manual, so bring your root energy. 🔥

and that's a wrap, bestie!! this page came from Red Hat and it's dated 2023-03-28, so when you're out here listing metadata regions at 3am, just know that's who to thank. mwah. 💖✨🎀