lsm_syste...ct_update(3)

✨ NAME ✨

lsm_system_read_cache_pct_update — bestie, this one changes the read cache percentage for the system you point it at 💅

It lives in the Libstoragemgmt C API Manual, so you already know it's giving serious low-level energy 🎀

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🌸 SYNOPSIS 🌸

int lsm_system_read_cache_pct_update (lsm_connect *conn, lsm_system
*system, uint32_t read_pct, lsm_flag flags);

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🫶 ARGUMENTS 🫶

• conn — a valid connection, no fake ones allowed, she will notice 🙈
• system — the pointer of lsm_system, aka the actual system you're trying to talk to 💖
• read_pct — uint32_t. The desired read cache percentage. Pass O to disable read cache entirely — yes, that's a capital letter O in the original, copying it exactly because we do not edit the sacred text, periodt 👑
• flags — reserved for future use, must be LSM_CLIENT_FLAG_RSVD. Don't get creative with this one bestie 😭

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⭐ VERSION ⭐

1.3 — she's been around a minute and she's still iconic ✨

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🦋 DESCRIPTION 🦋

Only available for hardware RAID cards. That's the whole vibe check — if you're not on hardware RAID, this function is not for you, no cap.

Change the read cache percentage for the specified system. That's it, that's the job 🌈

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👑 CAPABILITY 👑

LSM_CAP_SYS_READ_CACHE_PCT_UPDATE

This is the capability flag that says "yes, this system can actually do the thing." Check it or cry about it 💀

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💜 RETURN 💜

Error code as enumerated by lsm_error_number. Here's the whole menu, no skips:

• LSM_ERR_OK
  • On success. We love to see it 🎉
• LSM_ERR_INVALID_ARGUMENT
  • When any argument is NULL or not a valid lsm_connect pointer or invalid flags. Basically: you handed her something unserious 😭
• LSM_ERR_NOT_FOUND_SYSTEM
  • When system not found. She looked. It wasn't there. 🫠
• LSM_ERR_NO_SUPPORT
  • Not supported. The hardware said "not today" 🙅‍♀️

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Heads up bestie: if you're not on a hardware RAID card, don't even bother, fr fr — that's a LSM_ERR_NO_SUPPORT waiting to happen 💀

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That's the whole page, and honestly? She ate 💅 Written up in the Libstoragemgmt C API Manual, last touched February 2026 — go forth and cache responsibly, my love 🎀✨💖