Re: [CentOS] Centos 6.5 on USB stick performance / stalls

Rainer Traut <tr.ml@...> writes:

Hi,

I am running C6.5 64bit on an USB stick connected to a HP DL360G7; It is usually an ESXi host but eg for firmware updates (not available on SPP) I use this local installation.

Problem are the lags and unresponsiveness we are seeing for example when running yum update in the installation phase. The whole system stalls but there is no io in vmstat.

<SNIP>

I've been running various versions of Fedora from a USB hard drive for several years and haven't seen anything like what you describe. I'm using a "real" 400GB Western Digital hard drive instead of flash or SSD. Given my experience I'd bet that the lags you're seeing are due to the flash drive.

Cheers, Dave