System requirements

Direct I/O support is a platform-dependent feature that is currently available on Solaris SPARC, Windows, IBM AIX, and Linux.

**Table 1-1: System requirements for Linux 32-bit and 64-bit**
Operating system	Hardware	Minimum RAM
Linux x86 Red Hat Enterprise Linux 4.0 update: 4 kernel-2.6.9-55.EL glibc-2.3.4-2.36 Red Hat Enterprise Linux 5.0 update:1 kernel-2.6.18-53.1.13.el5 glibc-2.5-18 SuSE Linux Enterprise Server SLES 10 kernel-smp-2.6.16.21-0.8 glibc-2.4-31.2	Intel Xeon AMD Opteron	512 MB
Linux x64 RedHat Enterprise Linux 4.0 update: 4 kernel-2.6.9-55.EL glibc-2.3.4-2.36 Red Hat Enterprise Linux 5.0 update:1 kernel-2.6.18-53.1.13.el5 glibc-2.5-18 SuSE Linux Enterprise Server SLES 10 kernel-smp-2.6.16.21-0.8 glibc-2.4-31.2	Intel Xeon EM64T AMD Opteron	512 MB
Linux pSeries Red Hat Enterprise Linux 4.0 update: 4 kernel-2.6.9-55.EL glibc-2.3.4-2.36 compat-libstdc++-33-3.2.3-47.3 Red Hat Enterprise Linux 5.0 update:1 kernel-2.6.18-53.1.13.el5 glibc-2.5-18 SuSE Linux Enterprise Server SLES 10 kernel-smp-2.6.16.21-0.8 glibc-2.4-31.2	IBM pSeries Server with POWER5 CPU	512 MB
	Memory needed for 32-bit x86 systems
Minimum RAM required for Adaptive Server	96MB	With default stack size, packet size, and user log cache size
Minimum RAM per additional user	Approx. 182KB
Default user stack size	64KB
	Memory needed for 64-bit x64 systems
Minimum RAM required for Adaptive Server	106MB	With default stack size, packet size, and user log cache size
Minimum RAM per additional user	Approx. 233KB
Default user stack size	86K
	Memory needed forpSeries systems
Minimum RAM required for Adaptive Server	127MB	With default stack size, packet size, and user log cache size
Minimum RAM per additional user	Approx. 324KB
Default user stack size	128K

**Table 1-2: Disk space requirements for Linux 32-bit platforms**
Product	Disk space requirements
Adaptive Server typical install	865MB
Default databases created during install	306MB
Total	1015MB

**Table 1-3: System requirements for Linux Itanium**
Operating system	Hardware	Minimum RAM
Linux Itanium Red Hat Enterprise Linux 4.0 update: 4 kernel -2.6.9-42.EL glibc: glibc-2.3.4-2.25 ia32el: ia32el-1.6-10.EL4	Intel Itanium/Itanium 2 architecture	256 MB Recommended: at least 512 MB
Linux Itanium SUSE Linux Enterprise Server 10 kernel -2.6.16.21-0.8.or higher glibc: glibc-2.4-31.2 or higher ia32el: ia32el-6.5-17.2 or higher	Intel Itanium/Itanium 2 architecture	256 MB Recommended: at least 512 MB
	Memory needed
Processor	32-bit Intel Pentium II level
Minimum RAM required for Adaptive Server	128MB	With default stack size, packet size, and user log cache size
Minimum RAM per additional user	Approx. 140KB
Default user stack size	80KB

**Table 1-4: Disk space requirements for Linux 64-bit 64 platforms**
Product	Disk space requirements
Adaptive Server typical install	921MB
Default databases created during install	306MB
Total	1071MB

**Table 1-5: System requirements for Linux Itanium**
Operating system	Hardware	Minimum RAM
Linux Itanium Red Hat Enterprise Linux 4.0 update: 4 kernel -2.6.9-42.EL glibc: glibc-2.3.4-2.25 ia32el: ia32el-1.6-10.EL4	Intel Itanium/Itanium 2 architecture	256 MB Recommended: at least 512 MB
Linux Itanium SUSE Linux Enterprise Server 10 kernel -2.6.16.21-0.8.or higher glibc: glibc-2.4-31.2 or higher ia32el: ia32el-6.5-17.2 or higher	Intel Itanium/Itanium 2 architecture	256 MB Recommended: at least 512 MB
	Memory needed
Processor	32-bit Intel Pentium II level
Minimum RAM required for Adaptive Server	128MB	With default stack size, packet size, and user log cache size
Minimum RAM per additional user	Approx. 140KB
Default user stack size	80KB

**Table 1-6: Disk space requirements for Linux 64-bit pSeries platforms**
Product	Disk space requirements
Adaptive Server typical install	1092MB
Default databases created during install	164MB
Total	1256MB

Adaptive Server 15.0.3 supports Pentium and higher chip sets.