Solaris Tunable Parameters Reference Manual - SCN Research

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IPQoS Tunable Parameter ip_policy_mask Description Enables or disables IPQoS processing in any of the following callout positions: forward outbound, forward inbound, local outbound, and local inbound. This parameter is a bitmask as follows: Not Used Not Used Not Used Not Used Forward Outbound Forward Inbound Local Outbound Local Inbound X X X X 0 0 0 0 A 1 in any of the position masks or disables IPQoS processing in that particular callout position. For example, a value of 0x01 disables IPQoS processing for all the local inbound packets. Default Range Dynamic? When to Change Commitment Level The default value is 0, meaning that IPQoS processing is enabled in all the callout positions. 0 (0x00) to 15 (0x0F). A value of 15 indicates that IPQoS processing is disabled in all the callout positions. Yes If you want to enable or disable IPQoS processing in any of the callout positions. Unstable 160 Solaris Tunable Parameters Reference Manual • June 2005
SCTP Tunable Parameters sctp_max_init_retr Description Default 8 Range 0 to 128 Dynamic? When to Change Commitment Level Controls the maximum number of attempts an SCTP endpoint should make at resending an INIT chunk. The SCTP endpoint can use the SCTP initiation structure to override this value. Yes The number of INIT retransmissions depend on “sctp_pa_max_retr” on page 161. Ideally, sctp_max_init_retr should be less than or equal to sctp_pa_max_retr. Unstable sctp_pa_max_retr Description Default 10 Range 1 to 128 Dynamic? When to Change Commitment Level Controls the maximum number of retransmissions (over all paths) for an SCTP association. The SCTP association is aborted when this number is exceeded. Yes The maximum number of retransmissions over all paths depend on the number of paths and the maximum number of retransmission over each path. Ideally, sctp_pa_max_retr should be set to the sum of “sctp_pp_max_retr” on page 162 over all available paths. For example, if there are 3 paths to the destination and the maximum number of retransmissions over each of the 3 paths is 5, then sctp_pa_max_retr should be set to less than or equal to 15. (See the Note in Section 8.2, RFC 2960.) Unstable Chapter 4 • Internet Protocol Suite Tunable Parameters 161
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Solaris Tunable Parameters Referenc
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Contents Preface 13 1 Overview of S
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General Driver Parameter 62 moddebu
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nfs:nfs3_nra 109 nfs:nfs4_nra 109 n
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tcp_keepalive_interval 153 tcp_keep
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A Tunable Parameters Change History
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Preface The Solaris Tunable Paramet
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■ Sun Performance and Tuning: SPA
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TABLE P-2 Shell Prompts Shell (Cont
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CHAPTER 1 Overview of Solaris Syste
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Many applications that previously r
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IP Forwarding Changes In this Solar
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Tuning a Solaris System The Solaris
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Implicit When to Change Commitment
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kmdb Command kmdb is a interactive
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sysdef Command The sysdef command p
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CHAPTER 2 Solaris Kernel Tunable Pa
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the startup process, the value of p
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When to Change When the system pani
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A Solaris system running a 64-bit k
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When to Change Commitment Level See
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Data Type Default Range Units Dynam
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Units Dynamic? Validation Commitmen
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Default Range Units Dynamic? max_np
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Default Range The greater of 1/64th
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minfree Description Data Type Speci
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Range The minimum value is 64 Kbyte
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Commitment Level Unstable fastscan
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Units Dynamic? Validation When to C
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Data Type Default Range Unsigned lo
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Flag Setting Description AUDIT 0x1
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■ descr = 0x2a Nov 5 16:16:50 sys
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lim_fd_max Description Data Type De
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Validation When to Change None. Lar
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Data Type Default 40 Range Units Dy
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Units bufhwm: Kbytes bufhwm_pct: pe
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dquot table full Commitment Level U
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ufs_WRITES Description Data Type De
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smallfile Description Determines th
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Pseudo Terminals Pseudo terminals,
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Dynamic? Validation When to Change
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Range Units Dynamic? Validation Whe
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Default Range Units Dynamic? Valida
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When to Change Commitment Level Whe
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When to Change Commitment Level Cha
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Solaris Volume Manager Parameters m
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Network Driver Parameters intr_blan
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CHAPTER 3 NFS Tunable Parameters Th
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Units Dynamic? Validation When to C
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Data Type Default Signed integer (3
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Range Units Dynamic? Validation Whe
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nfs:nfs4_dynamic Description Data T
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If you disable the nfs:nfs_disable_
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Data Type Default 8 The operations
Page 109 and 110: nfs:nfs3_nra Description Data Type
Page 111 and 112: When to Change Because rnodes are c
Page 113 and 114: nfs:nfs4_shrinkreaddir Description
Page 115 and 116: nfs:nfs_disable_rddir_cache Descrip
Page 117 and 118: nfs:nfs3_max_transfer_size paramete
Page 119 and 120: Data Type Default 1 Range 0 to 2 31
Page 121 and 122: Units Dynamic? Validation When to C
Page 123 and 124: nfs:nfs3_max_transfer_size Descript
Page 125 and 126: nfs:nfs3_max_transfer_size_clts Des
Page 127 and 128: nfssrv:rfs_write_async Description
Page 129 and 130: pcmod Module Parameters This sectio
Page 131 and 132: Data Type Default Integer (32-bit)
Page 133 and 134: The size of the cache should match
Page 135 and 136: CHAPTER 4 Internet Protocol Suite T
Page 137 and 138: IP Tunable Parameters ip_icmp_err_i
Page 139 and 140: When to Change Commitment Level Do
Page 141 and 142: When to Change Consider changing th
Page 143 and 144: When to Change Do not increase this
Page 145 and 146: Dynamic? When to Change Commitment
Page 147 and 148: When to Change Commitment Level Eve
Page 149 and 150: For more information, refer to RFC
Page 151 and 152: tcp_conn_req_max_q0 Description Def
Page 153 and 154: tcp_mdt_max_pbufs Description Defau
Page 155 and 156: TCP/IP Parameters Set in the /etc/s
Page 157 and 158: Commitment Level Unstable tcp_rexmi
Page 159: Range Dynamic? When to Change Commi
Page 163 and 164: sctp_heartbeat_interval Description
Page 165 and 166: Default 102,400 Range 8,192 to 1,07
Page 167 and 168: Default 60,000 Range 1,000 to 60,00
Page 169 and 170: sctp_addip_enabled Description Defa
Page 171 and 172: CHAPTER 5 Network Cache and Acceler
Page 173 and 174: nca:nca_conn_req_max_q0 Description
Page 175 and 176: sq_max_size Description Default Ran
Page 177 and 178: CHAPTER 6 System Facility Parameter
Page 179 and 180: For details, see ftp(4). inetinit T
Page 181 and 182: tar For a description of the -f fun
Page 183 and 184: APPENDIX A Tunable Parameters Chang
Page 185 and 186: Maximum of the triplet (200, tune_t
Page 187 and 188: NFS Parameters nfs:nrnode (Solaris
Page 189 and 190: Commitment Level ■ Keep this feat
Page 191 and 192: Commitment Level Unstable xxx:ip_fo
Page 193 and 194: Commitment Level Unstable Parameter
Page 195 and 196: msgsys:msginfo_msgtql (Solaris 9 Re
Page 197 and 198: msgsys:msginfo_msgseg (Solaris 9 Re
Page 199 and 200: Validation When to Change Commitmen
Page 201 and 202: When to Change Commitment Level Whe
Page 203 and 204: System V Shared Memory Parameters s
Page 205 and 206: APPENDIX B Revision History for Thi
Page 207 and 208: ■ ■ msgsys:msginfo_msgseg msgsy
Page 209 and 210: SCTP Tunable Parameters The followi
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1. This message is displayed if the
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Index A autofs, 178 autoup, 41 E en
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nfs:nfs3_max_transfer_size_cots, 12
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