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<channel>
	<title>Sam &#38; Micro</title>
	<atom:link href="http://vfamilyserver.org/blog/index.php/feed/" rel="self" type="application/rss+xml" />
	<link>http://vfamilyserver.org/blog</link>
	<description>Things about my own net</description>
	<lastBuildDate>Sun, 15 Apr 2012 17:54:57 +0000</lastBuildDate>
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		<title>Comprimiamo al massimo i qcow2</title>
		<link>http://vfamilyserver.org/blog/index.php/2012/03/comprimiamo-al-massimo-i-qcow2/</link>
		<comments>http://vfamilyserver.org/blog/index.php/2012/03/comprimiamo-al-massimo-i-qcow2/#comments</comments>
		<pubDate>Wed, 28 Mar 2012 15:19:25 +0000</pubDate>
		<dc:creator>daniele</dc:creator>
				<category><![CDATA[MicroServer]]></category>
		<category><![CDATA[disk]]></category>
		<category><![CDATA[HP MicroServer]]></category>
		<category><![CDATA[kvm]]></category>
		<category><![CDATA[libvirt]]></category>
		<category><![CDATA[qcow2]]></category>
		<category><![CDATA[qemu]]></category>
		<category><![CDATA[virtualization]]></category>
		<category><![CDATA[vm]]></category>

		<guid isPermaLink="false">http://vfamilyserver.org/blog/?p=402</guid>
		<description><![CDATA[Ecco un breve tutorial per comprimere al massimo le imamgini qcow2. Le fasi principali necessarie sono: Montare il filesystem in read-only oppure attivare il device sull&#8217;host Eseguire zerofree Ricomprimere l&#8217;immagine I requisiti sono: zerofree (http://intgat.tigress.co.uk/rmy/uml/index.html oppure yum install zerofree) qemu-img (disponibili dal pacchetto qemu) Opzionalmente qemu-nbd (disponibili dal pacchetto qemu) Modulo del kernel nbd Il [...]]]></description>
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		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Conversione VM RHEL5 da IDE a VirtIO</title>
		<link>http://vfamilyserver.org/blog/index.php/2012/03/conversione-vm-rhel5-da-ide-a-virtio/</link>
		<comments>http://vfamilyserver.org/blog/index.php/2012/03/conversione-vm-rhel5-da-ide-a-virtio/#comments</comments>
		<pubDate>Tue, 27 Mar 2012 16:41:38 +0000</pubDate>
		<dc:creator>daniele</dc:creator>
				<category><![CDATA[MicroServer]]></category>
		<category><![CDATA[kvm]]></category>
		<category><![CDATA[libvirt]]></category>
		<category><![CDATA[rhel5]]></category>
		<category><![CDATA[server]]></category>
		<category><![CDATA[virtio]]></category>
		<category><![CDATA[virtualization]]></category>
		<category><![CDATA[vm]]></category>

		<guid isPermaLink="false">http://vfamilyserver.org/blog/?p=389</guid>
		<description><![CDATA[Recentemente ho avuto necessità di convertire una macchina virtuale KVM con Red Hat Enterprise 5.7 installata originariamente con emulazione IDE al più performante layer di I/O VirtIO. Il kernel di RHEL5 (e derivate) per quanto vecchiotto supporta già VirtIO sia per i dischi, per la rete che genericamente per PCI e channels. Per prima cosa, [...]]]></description>
		<wfw:commentRss>http://vfamilyserver.org/blog/index.php/2012/03/conversione-vm-rhel5-da-ide-a-virtio/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Riprendere un trasferimento SCP interrotto</title>
		<link>http://vfamilyserver.org/blog/index.php/2012/03/riprendere-un-trasferimento-scp-interrotto/</link>
		<comments>http://vfamilyserver.org/blog/index.php/2012/03/riprendere-un-trasferimento-scp-interrotto/#comments</comments>
		<pubDate>Tue, 27 Mar 2012 16:29:13 +0000</pubDate>
		<dc:creator>daniele</dc:creator>
				<category><![CDATA[MicroServer]]></category>
		<category><![CDATA[rsync ssh scp]]></category>

		<guid isPermaLink="false">http://vfamilyserver.org/blog/?p=382</guid>
		<description><![CDATA[Con rsync basta: rsync --partial --progress --rsh=ssh &#91;source&#93; &#91;dest&#93;]]></description>
		<wfw:commentRss>http://vfamilyserver.org/blog/index.php/2012/03/riprendere-un-trasferimento-scp-interrotto/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Creare una macchina KVM</title>
		<link>http://vfamilyserver.org/blog/index.php/2012/02/creare-una-macchina-kvm/</link>
		<comments>http://vfamilyserver.org/blog/index.php/2012/02/creare-una-macchina-kvm/#comments</comments>
		<pubDate>Sat, 18 Feb 2012 15:30:47 +0000</pubDate>
		<dc:creator>daniele</dc:creator>
				<category><![CDATA[MicroServer]]></category>
		<category><![CDATA[kvm]]></category>
		<category><![CDATA[libvirt]]></category>
		<category><![CDATA[lighttpd]]></category>
		<category><![CDATA[linux]]></category>
		<category><![CDATA[server]]></category>
		<category><![CDATA[software]]></category>
		<category><![CDATA[virtualization]]></category>

		<guid isPermaLink="false">http://vfamilyserver.org/blog/?p=171</guid>
		<description><![CDATA[Per creare una nuova macchina virtuale con KVM il consiglio è quello di utilizzare l&#8217;infrastruttura libvirtd e l&#8217;utilissimo virt-install. Con Fedora è sufficiente il comando yum per installare entrambi: yum install libvirt python-virtinst Un esempio per installare Scientific Linux 6 (clone di RHEL 6) direttamente da un mirror (in questo caso il GARR): virt-install -n sl6 [...]]]></description>
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		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Creare un volume LVM</title>
		<link>http://vfamilyserver.org/blog/index.php/2012/01/creare-un-volume-lvm/</link>
		<comments>http://vfamilyserver.org/blog/index.php/2012/01/creare-un-volume-lvm/#comments</comments>
		<pubDate>Sat, 21 Jan 2012 20:57:03 +0000</pubDate>
		<dc:creator>daniele</dc:creator>
				<category><![CDATA[MicroServer]]></category>
		<category><![CDATA[disk]]></category>
		<category><![CDATA[libvirt]]></category>
		<category><![CDATA[lvm]]></category>
		<category><![CDATA[raid]]></category>
		<category><![CDATA[software]]></category>
		<category><![CDATA[virtualization]]></category>
		<category><![CDATA[vm]]></category>

		<guid isPermaLink="false">http://vfamilyserver.org/blog/?p=360</guid>
		<description><![CDATA[Supponendo di voler creare un volume LVM nel disco sdd per prima cosa inizializziamo lo spazio pvcreate /dev/sdd pvcreate initializes PhysicalVolume for later use by the Logi‐ cal Volume Manager (LVM). Each PhysicalVolume can be a disk partition, whole disk, meta device, or loopback file. Successivamente creiamo il gruppo di volumi. Come estenzione fisica del [...]]]></description>
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		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Montare immagini raw partizionate</title>
		<link>http://vfamilyserver.org/blog/index.php/2012/01/montare-immagini-raw-partizionate/</link>
		<comments>http://vfamilyserver.org/blog/index.php/2012/01/montare-immagini-raw-partizionate/#comments</comments>
		<pubDate>Sat, 21 Jan 2012 20:39:55 +0000</pubDate>
		<dc:creator>daniele</dc:creator>
				<category><![CDATA[MicroServer]]></category>
		<category><![CDATA[disk]]></category>
		<category><![CDATA[kvm]]></category>
		<category><![CDATA[libvirt]]></category>
		<category><![CDATA[linux]]></category>
		<category><![CDATA[software]]></category>
		<category><![CDATA[virtualization]]></category>
		<category><![CDATA[vm]]></category>

		<guid isPermaLink="false">http://vfamilyserver.org/blog/?p=354</guid>
		<description><![CDATA[Per montare un immagine RAW oppure una partizione e/o LV contenente una VM o un insieme di partizioni è sufficiente avere installato kpartx yum -y install kpart A questo punto è possibile sfruttare /dev/mapper per mappare le partizioni del volume kpartx -av /path/to/file_or_lv le partizioni compariranno sotto forma di devices ls /dev/mapper/ file_or_lv1 file_or_lv2 file_or_lvN [...]]]></description>
		<wfw:commentRss>http://vfamilyserver.org/blog/index.php/2012/01/montare-immagini-raw-partizionate/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>LXC containers 01</title>
		<link>http://vfamilyserver.org/blog/index.php/2011/08/lxc-containers-01/</link>
		<comments>http://vfamilyserver.org/blog/index.php/2011/08/lxc-containers-01/#comments</comments>
		<pubDate>Fri, 26 Aug 2011 13:08:17 +0000</pubDate>
		<dc:creator>daniele</dc:creator>
				<category><![CDATA[MicroServer]]></category>
		<category><![CDATA[libvirt]]></category>
		<category><![CDATA[linux]]></category>
		<category><![CDATA[lxc]]></category>
		<category><![CDATA[virtualization]]></category>

		<guid isPermaLink="false">http://vfamilyserver.org/blog/?p=272</guid>
		<description><![CDATA[Cominciamo con questo breve articolo una serie dedicata a LXC. LXC: http://lxc.sourceforge.net/ LXC is the userspace control package for Linux Containers, a lightweight virtual system mechanism sometimes described as “chroot on steroids”. LXC builds up from chroot to implement complete virtual systems, adding resource management and isolation mechanisms to Linux’s existing process management infrastructure. In [...]]]></description>
		<wfw:commentRss>http://vfamilyserver.org/blog/index.php/2011/08/lxc-containers-01/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>APCUPSD bug USB</title>
		<link>http://vfamilyserver.org/blog/index.php/2011/07/apcupsd-bug-usb/</link>
		<comments>http://vfamilyserver.org/blog/index.php/2011/07/apcupsd-bug-usb/#comments</comments>
		<pubDate>Wed, 20 Jul 2011 22:02:32 +0000</pubDate>
		<dc:creator>daniele</dc:creator>
				<category><![CDATA[MicroServer]]></category>
		<category><![CDATA[Other stuff]]></category>
		<category><![CDATA[apc]]></category>
		<category><![CDATA[hardware]]></category>
		<category><![CDATA[HP MicroServer]]></category>
		<category><![CDATA[linux]]></category>
		<category><![CDATA[monitoring]]></category>
		<category><![CDATA[server]]></category>
		<category><![CDATA[software]]></category>

		<guid isPermaLink="false">http://vfamilyserver.org/blog/?p=269</guid>
		<description><![CDATA[Attenzione! Il post non è più aggiornato poiché il bug è stato risolto nella release 3.4.10 di apcupsd. 3.14.10 -- 13 September 2011 (Maintenance Release) &#160; BUG FIXES &#160; * Fix missing status and spurrious incorrect status on newer BackUPS CS models using USB interface. [...] APCUPSD è un comodissimo software per chi possiede un [...]]]></description>
		<wfw:commentRss>http://vfamilyserver.org/blog/index.php/2011/07/apcupsd-bug-usb/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>lighttpd: attiviamo la compressione</title>
		<link>http://vfamilyserver.org/blog/index.php/2011/05/lighttpd-attiviamo-la-compressione/</link>
		<comments>http://vfamilyserver.org/blog/index.php/2011/05/lighttpd-attiviamo-la-compressione/#comments</comments>
		<pubDate>Mon, 30 May 2011 16:00:52 +0000</pubDate>
		<dc:creator>daniele</dc:creator>
				<category><![CDATA[MicroServer]]></category>
		<category><![CDATA[lighttpd]]></category>
		<category><![CDATA[server]]></category>
		<category><![CDATA[software]]></category>
		<category><![CDATA[web]]></category>

		<guid isPermaLink="false">http://vfamilyserver.org/blog/?p=247</guid>
		<description><![CDATA[MicroServer, il mio home-server che eroga i servizi web, è connesso alla WAN attraverso una line ADSL. Questa tecnologia, assimetrica, comporta velocità di upload abbastanza limitate (384 Kbit/s nel caso in esame): negli ultimi tempi, con un uso intenso di css e js (che arrivano anche a 200KB) nelle applicazioni web, questa limitazione è diventata [...]]]></description>
		<wfw:commentRss>http://vfamilyserver.org/blog/index.php/2011/05/lighttpd-attiviamo-la-compressione/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>KVM: nested virtualization</title>
		<link>http://vfamilyserver.org/blog/index.php/2011/05/kvm-nested-virtualization/</link>
		<comments>http://vfamilyserver.org/blog/index.php/2011/05/kvm-nested-virtualization/#comments</comments>
		<pubDate>Sat, 14 May 2011 14:48:32 +0000</pubDate>
		<dc:creator>daniele</dc:creator>
				<category><![CDATA[MicroServer]]></category>
		<category><![CDATA[kvm]]></category>
		<category><![CDATA[libvirt]]></category>
		<category><![CDATA[server]]></category>
		<category><![CDATA[virtualization]]></category>

		<guid isPermaLink="false">http://vfamilyserver.org/blog/?p=173</guid>
		<description><![CDATA[Se si possiede un processore AMD con supporto alla virtualizzazione è possibile attivare la nested virtualization di KVM che permette di esporre le istruzioni di virtualizzazione al guest. Questo permette ad esempio di usare KVM, Xen, Hyper-V [...] dentro una macchina virtualizzata con KVM, molto utile per i test. Ecco come fare Per prima cosa verificare [...]]]></description>
		<wfw:commentRss>http://vfamilyserver.org/blog/index.php/2011/05/kvm-nested-virtualization/feed/</wfw:commentRss>
		<slash:comments>2</slash:comments>
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