Questions tagged [lvmcache]

A new technique which in theory take your existing logical volumes and convert them to be cached devices.

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lvchange -ay on a lvmcached logical volume memory leak Ubuntu 22.04

Ubuntu 22.04, I configured SSD cached LVs using lvmcache (type writecache) following lvmcache man page. The system boots fine but the cached LVs status is always NOT available. LV Path ...
shog7eam's user avatar
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A Question about LVM volume and storage management

Hi, I have 2 block devices: a 256G SSD and an 1TB HDD. I want to do: *Use the SSD storage for actively accessed and speed demanding files/directories such as runtime files, main system resources; and ...
zLadin's user avatar
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Ubuntu 18.04 won't boot when LVM volumes are cached

I have an Ubuntu 18.04 PC with the following disk layout : ====================== lsblk NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT sda 8:0 0 931,5G 0 disk └─...
storestyggeulv's user avatar
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slow startup, failed to connect to lvmetad

Ubuntu 18.04 after install seems to be doing quite OK, but the startup is slow. It's almost minute to get to "cryptluks screen", to enter pass to decrypt lvm partition. I noticed unknown error to me, ...
Martin Mucha's user avatar
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How to setup lvm to cache /root on 18.04?

I have two drives and can use lvmcache to cache the hard drive with the SSD with 16.04. However, when I follow the same process with 18.04, I can create the lvmcache but when I reboot, I get the ...
cabryan's user avatar
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How to add an SSD cache to an encrypted HDD for desktop/GUI use?

SSHDs seem to be stuck at 4TB and 8GB SSD cache (one model is available with 1TB/32GB) while bigger SSDs are widely available and some solutions exist to to pair an HDD with an SSD in Linux. I'm ...
LiveWireBT's user avatar
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2 votes
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lvmcache failed to boot: "device-mapper: cache-policy: unknown policy type"

TL;TR Failed to boot with lvm2's new default cache-pool setting cache-policy-smq The problem I have created a lvm disk with lvmcache on SSD drive on ubuntu 16.04 Following this, but failed to mount ...
jcppkkk's user avatar
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11 votes
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How to install Ubuntu with both disk encryption AND SSD caching

I'm using Ubuntu in a corporate environment, and our security policy states that we have to use full disk encryption. I've also got a laptop with a 32GB mSATA SSD and 750GB of spinning rust. My ...
Adrian's user avatar
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