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2<!DOCTYPE sections SYSTEM "/dtd/book.dtd"> 2<!DOCTYPE sections SYSTEM "/dtd/book.dtd">
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4<!-- The content of this document is licensed under the CC-BY-SA license --> 4<!-- The content of this document is licensed under the CC-BY-SA license -->
5<!-- See http://creativecommons.org/licenses/by-sa/1.0 --> 5<!-- See http://creativecommons.org/licenses/by-sa/1.0 -->
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7<!-- $Header: /var/cvsroot/gentoo/xml/htdocs/doc/en/handbook/hb-install-ppc-disk.xml,v 1.9 2004/07/16 09:37:11 neysx Exp $ --> 7<!-- $Header: /var/cvsroot/gentoo/xml/htdocs/doc/en/handbook/hb-install-ppc-disk.xml,v 1.10 2004/07/18 10:29:59 neysx Exp $ -->
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9<sections> 9<sections>
10<section> 10<section>
11<title>Introduction to Block Devices</title> 11<title>Introduction to Block Devices</title>
12<subsection> 12<subsection>
336as the creation of large filesystems, the use of many small files, very large 336as the creation of large filesystems, the use of many small files, very large
337files and directories containing tens of thousands of files. 337files and directories containing tens of thousands of files.
338</p> 338</p>
339 339
340<p> 340<p>
341<b>XFS</b> is a filesystem with metadata journaling that is fully supported 341<b>XFS</b> is a filesystem with metadata journaling which comes with a robust
342under Gentoo Linux's xfs-sources kernel. It comes with a robust feature-set and
343is optimized for scalability. We only recommend using this filesystem on Linux 342feature-set and is optimized for scalability. We only recommend using this
344systems with high-end SCSI and/or fibre channel storage and a uninterruptible 343filesystem on Linux systems with high-end SCSI and/or fibre channel storage and
345power supply. Because XFS aggressively caches in-transit data in RAM, improperly 344an uninterruptible power supply. Because XFS aggressively caches in-transit data
346designed programs (those that don't take proper precautions when writing files 345in RAM, improperly designed programs (those that don't take proper precautions
347to disk and there are quite a few of them) can lose a good deal of data if the 346when writing files to disk and there are quite a few of them) can lose a good
348system goes down unexpectedly. 347deal of data if the system goes down unexpectedly.
349</p> 348</p>
350 349
351<p> 350<p>
352<b>JFS</b> is IBM's high-performance journaling filesystem. It has recently 351<b>JFS</b> is IBM's high-performance journaling filesystem. It has recently
353become production-ready and there hasn't been a sufficient track record to 352become production-ready and there hasn't been a sufficient track record to

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