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#storage

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Never underestimate the power of “wall clock as a benchmark” folks!! Some beautiful insights from our good friend @jeffgeerling.com who always measures twice, and cuts once! Although I do always love me some unnatural acts of advanced storage violence with “dd” and chums! #storage #hpc #cloud

RE: https://bsky.app/profile/did:plc:nmkyyidygnubydyxw5reogfx/post/3lv47ga22sk2t

You aren’t wrong about layers and layers and layers. I was benching a btrfs the other day with what should have been wicked slow storage. For all my use cases it went like an absolute 🚀. Sometimes you just want a kernel to build fast. If it does, I’m a happy camper. 🤣

I finally got round to taking this LG Chem #RESU10H battery apart. These are the 6 cell packs, originally all in series for 155vdc. I will be restringing them as 2s3p for a 48vdc nominal pack, and implementing a new active balancing BMS.

The battery disabled itself, throwing an error code with #30, which indicates the cell with an issue. Sure enough, the one pack's voltage with cell #30 is about 0.4v lower than the rest. Since these are NMC, absolute care must be taken in any resolution.

Months after Elon Musk's DOGE crusade to wipe it out, LTO tape storage is bigger than ever. It is tempting to write off tape storage as relics from a bygone era but its recent performance says otherwise. With 176.5 exabytes shipped in 2024 — up 15.4% year over year — LTO tape is carving out a strategic niche in the surge of AI and ML workloads.

TL;DR
⚙️ Record 176.5 EB shipped in 2024
🔐 Tape offers cost‑effective, long‑term durability
📈 Fueled by AI/ML archival demand
🚀 LTO roadmap plans up to 576 TB per cartridge

tomshardware.com/pc-components
#tapestorage #AI #ML #datainfrastructure #security #privacy #cloud #infosec #cybersecurity #datastorage #bigdata #data #storagemanagement #storage

Tom's Hardware · Months after Elon Musk's DOGE crusade to wipe it out, LTO tape storage is bigger than ever — a record 176.5 exabytes shipped in 2024, the fourth consecutive year of growthBy Mark Tyson

💾 ZFS ARC Cache Explained 💾

ZFS uses RAM as a powerful cache called the ARC (Adaptive Replacement Cache) to speed up disk reads and metadata operations.

It looks like ZFS “eats” RAM — but it’s actually putting your memory to work, caching data for blazing-fast access.

⚠️ Important: ARC is not a memory leak!
It dynamically adjusts — if apps need RAM, ARC frees it instantly.

🛠️ You can set a limit with zfs_arc_max so ZFS won’t take all your memory.

✅ Properly tuned, ARC boosts performance without starving your system.

So don’t fear the RAM usage—embrace the cache! 🚀

Replied in thread

@glitzersachen @Yuki Besides "#AI" currently #scalping all the #storage media except #tape, I struggle to find any #longterm poweroff-able storage with similar if not higher data density than tape (cartridge volume wise!)...

  • Cuz flash and HDD are designed to be powered up at least like once a year of not more frequent and constantly check for bad blocks and sectors to workaround...

And the few EEPROMs I know that are way more stable long-term are barely cheaper than microfilm.

-Hopefully that bubble bursts soon and we can finally get affordan;e tech again andbI can nuild a demo unit of the #NeoFloppy...

github.com/KBtechnologies/NeoF